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Drop in flu activity suggests season may have peaked
Influenza activity dropped during the week ending Feb. 15, according to the Centers for Disease Control and Prevention. That decline, along with revised data from the 2 previous weeks, suggests that the 2019-2020 season has peaked for the second time. The rate of outpatient visits for influenza-like illness (ILI) came in at 6.1% for the week ending Feb. 15, after two straight weeks at 6.7%, the CDC’s influenza division reported Feb. 21.
The rates for those 2 earlier weeks had previously been reported at 6.8% (Feb. 8) and 6.6% (Feb. 1), which means that there have now been 2 consecutive weeks without an increase in national ILI activity.
State-level activity was down slightly as well. For the week ending Feb. 15, there were 39 states and Puerto Rico at the highest level of activity on the CDC’s 1-10 scale, compared with 41 states and Puerto Rico the week before. The number of states in the “high” range, which includes levels 8 and 9, went from 44 to 45, however, CDC data show.
Laboratory measures also dropped a bit. For the week, 29.6% of respiratory specimens tested positive for influenza, compared with 30.3% the previous week. The predominance of influenza A continued to increase, as type A went from 59.4% to 63.5% of positive specimens and type B dropped from 40.6% to 36.5%, the influenza division said.
In a separate report, the CDC announced interim flu vaccine effectiveness estimates.For the 2019-2020 season so far, “flu vaccines are reducing doctor’s visits for flu illness by almost half (45%). This is consistent with estimates of flu vaccine effectiveness (VE) from previous flu seasons that ranged from 40% to 60% when flu vaccine viruses were similar to circulating influenza viruses,” the CDC said.
Although VE among children aged 6 months to 17 years is even higher, at 55%, this season “has been especially bad for children. Flu hospitalization rates among children are higher than at this time in other recent seasons, including the 2017-18 season,” the CDC noted.
The number of pediatric flu deaths for 2019-2020 – now up to 105 – is “higher for the same time period than in every season since reporting began in 2004-05, with the exception of the 2009 pandemic,” the CDC added.
Interim VE estimates for other age groups are 25% for adults aged 18-49 and 43% for those 50 years and older. “The lower VE point estimates observed among adults 18-49 years appear to be associated with a trend suggesting lower VE in this age group against A(H1N1)pdm09 viruses,” the CDC said.
Influenza activity dropped during the week ending Feb. 15, according to the Centers for Disease Control and Prevention. That decline, along with revised data from the 2 previous weeks, suggests that the 2019-2020 season has peaked for the second time. The rate of outpatient visits for influenza-like illness (ILI) came in at 6.1% for the week ending Feb. 15, after two straight weeks at 6.7%, the CDC’s influenza division reported Feb. 21.
The rates for those 2 earlier weeks had previously been reported at 6.8% (Feb. 8) and 6.6% (Feb. 1), which means that there have now been 2 consecutive weeks without an increase in national ILI activity.
State-level activity was down slightly as well. For the week ending Feb. 15, there were 39 states and Puerto Rico at the highest level of activity on the CDC’s 1-10 scale, compared with 41 states and Puerto Rico the week before. The number of states in the “high” range, which includes levels 8 and 9, went from 44 to 45, however, CDC data show.
Laboratory measures also dropped a bit. For the week, 29.6% of respiratory specimens tested positive for influenza, compared with 30.3% the previous week. The predominance of influenza A continued to increase, as type A went from 59.4% to 63.5% of positive specimens and type B dropped from 40.6% to 36.5%, the influenza division said.
In a separate report, the CDC announced interim flu vaccine effectiveness estimates.For the 2019-2020 season so far, “flu vaccines are reducing doctor’s visits for flu illness by almost half (45%). This is consistent with estimates of flu vaccine effectiveness (VE) from previous flu seasons that ranged from 40% to 60% when flu vaccine viruses were similar to circulating influenza viruses,” the CDC said.
Although VE among children aged 6 months to 17 years is even higher, at 55%, this season “has been especially bad for children. Flu hospitalization rates among children are higher than at this time in other recent seasons, including the 2017-18 season,” the CDC noted.
The number of pediatric flu deaths for 2019-2020 – now up to 105 – is “higher for the same time period than in every season since reporting began in 2004-05, with the exception of the 2009 pandemic,” the CDC added.
Interim VE estimates for other age groups are 25% for adults aged 18-49 and 43% for those 50 years and older. “The lower VE point estimates observed among adults 18-49 years appear to be associated with a trend suggesting lower VE in this age group against A(H1N1)pdm09 viruses,” the CDC said.
Influenza activity dropped during the week ending Feb. 15, according to the Centers for Disease Control and Prevention. That decline, along with revised data from the 2 previous weeks, suggests that the 2019-2020 season has peaked for the second time. The rate of outpatient visits for influenza-like illness (ILI) came in at 6.1% for the week ending Feb. 15, after two straight weeks at 6.7%, the CDC’s influenza division reported Feb. 21.
The rates for those 2 earlier weeks had previously been reported at 6.8% (Feb. 8) and 6.6% (Feb. 1), which means that there have now been 2 consecutive weeks without an increase in national ILI activity.
State-level activity was down slightly as well. For the week ending Feb. 15, there were 39 states and Puerto Rico at the highest level of activity on the CDC’s 1-10 scale, compared with 41 states and Puerto Rico the week before. The number of states in the “high” range, which includes levels 8 and 9, went from 44 to 45, however, CDC data show.
Laboratory measures also dropped a bit. For the week, 29.6% of respiratory specimens tested positive for influenza, compared with 30.3% the previous week. The predominance of influenza A continued to increase, as type A went from 59.4% to 63.5% of positive specimens and type B dropped from 40.6% to 36.5%, the influenza division said.
In a separate report, the CDC announced interim flu vaccine effectiveness estimates.For the 2019-2020 season so far, “flu vaccines are reducing doctor’s visits for flu illness by almost half (45%). This is consistent with estimates of flu vaccine effectiveness (VE) from previous flu seasons that ranged from 40% to 60% when flu vaccine viruses were similar to circulating influenza viruses,” the CDC said.
Although VE among children aged 6 months to 17 years is even higher, at 55%, this season “has been especially bad for children. Flu hospitalization rates among children are higher than at this time in other recent seasons, including the 2017-18 season,” the CDC noted.
The number of pediatric flu deaths for 2019-2020 – now up to 105 – is “higher for the same time period than in every season since reporting began in 2004-05, with the exception of the 2009 pandemic,” the CDC added.
Interim VE estimates for other age groups are 25% for adults aged 18-49 and 43% for those 50 years and older. “The lower VE point estimates observed among adults 18-49 years appear to be associated with a trend suggesting lower VE in this age group against A(H1N1)pdm09 viruses,” the CDC said.
FROM THE CDC
Flu increases activity but not its severity
The CDC’s latest report shows that 6.8% of outpatients visiting health care providers had influenza-like illness during the week ending Feb. 8. That’s up from the previous week’s 6.6%, but that rise of 0.2 percentage points is smaller than the 0.6-point rises that occurred each of the 2 weeks before, and that could mean that activity is slowing.
That slowing, however, is not noticeable from this week’s map, which puts 41 states (there were 35 last week) and Puerto Rico in the red at the highest level of activity on the CDC’s 1-10 scale and another three states in the “high” range with levels of 8 or 9, the CDC’s influenza division reported.
That leaves Nevada and Oregon at level 7; Alaska, Florida, and the District of Columbia at level 5; Idaho at level 3, and Delaware with insufficient data (it was at level 5 last week), the CDC said.
The 2019-2020 season’s high activity, fortunately, has not translated into high severity, as overall hospitalization and mortality rates continue to remain at fairly typical levels. Hospitalization rates are elevated among children and young adults, however, and pediatric deaths are now up to 92, the CDC said, which is high for this point in the season.
The CDC’s latest report shows that 6.8% of outpatients visiting health care providers had influenza-like illness during the week ending Feb. 8. That’s up from the previous week’s 6.6%, but that rise of 0.2 percentage points is smaller than the 0.6-point rises that occurred each of the 2 weeks before, and that could mean that activity is slowing.
That slowing, however, is not noticeable from this week’s map, which puts 41 states (there were 35 last week) and Puerto Rico in the red at the highest level of activity on the CDC’s 1-10 scale and another three states in the “high” range with levels of 8 or 9, the CDC’s influenza division reported.
That leaves Nevada and Oregon at level 7; Alaska, Florida, and the District of Columbia at level 5; Idaho at level 3, and Delaware with insufficient data (it was at level 5 last week), the CDC said.
The 2019-2020 season’s high activity, fortunately, has not translated into high severity, as overall hospitalization and mortality rates continue to remain at fairly typical levels. Hospitalization rates are elevated among children and young adults, however, and pediatric deaths are now up to 92, the CDC said, which is high for this point in the season.
The CDC’s latest report shows that 6.8% of outpatients visiting health care providers had influenza-like illness during the week ending Feb. 8. That’s up from the previous week’s 6.6%, but that rise of 0.2 percentage points is smaller than the 0.6-point rises that occurred each of the 2 weeks before, and that could mean that activity is slowing.
That slowing, however, is not noticeable from this week’s map, which puts 41 states (there were 35 last week) and Puerto Rico in the red at the highest level of activity on the CDC’s 1-10 scale and another three states in the “high” range with levels of 8 or 9, the CDC’s influenza division reported.
That leaves Nevada and Oregon at level 7; Alaska, Florida, and the District of Columbia at level 5; Idaho at level 3, and Delaware with insufficient data (it was at level 5 last week), the CDC said.
The 2019-2020 season’s high activity, fortunately, has not translated into high severity, as overall hospitalization and mortality rates continue to remain at fairly typical levels. Hospitalization rates are elevated among children and young adults, however, and pediatric deaths are now up to 92, the CDC said, which is high for this point in the season.
Flu activity increases for third straight week
For the second time during the 2019-2020 flu season, activity measures have climbed into noteworthy territory.
The proportion of outpatient visits for influenza-like illness (ILI) reached its highest December level, 7.1%, since 2003 and then dropped for 2 weeks. Three weeks of increases since then, however, have the outpatient-visit rate at 6.7% for the week ending Feb. 1, 2020, the Centers for Disease Control and Prevention reported. The baseline rate for the United States is 2.4%.
That rate of 6.7% is already above the highest rates recorded in eight of the last nine flu seasons, and another increase could mean a second, separate trip above 7.0% in the 2019-2020 season – something that has not occurred since national tracking began in 1997, CDC data show.
Those same data also show that,
Another important measure on the rise, the proportion of respiratory specimens testing positive for influenza, reached a new high for the season, 29.8%, during the week of Feb. 1, the CDC’s influenza division said.
Tests at clinical laboratories also show that predominance is continuing to switch from type B (45.6%) to type A (54.4%), the influenza division noted. Overall predominance for the season, however, continues to favor type B, 59.3% to 40.7%.
The percentage of deaths caused by pneumonia and influenza, which passed the threshold for epidemic of 7.2% back in early January, has been trending downward for the last 3 weeks and was 7.1% as of Feb. 1, according to the influenza division.
ILI-related deaths among children continue to remain high, with a total count of 78 for the season after another 10 deaths were reported during the week ending Feb. 1, the CDC reported. Comparable numbers for the last three seasons are 44 (2018-2019), 97 (2017-2018), and 35 (2016-2017).
The CDC estimates put the total number of ILIs at around 22 million for the season so far, leading to 210,000 hospitalizations. The agency said that it expects to release estimates of vaccine effectiveness later this month.
For the second time during the 2019-2020 flu season, activity measures have climbed into noteworthy territory.
The proportion of outpatient visits for influenza-like illness (ILI) reached its highest December level, 7.1%, since 2003 and then dropped for 2 weeks. Three weeks of increases since then, however, have the outpatient-visit rate at 6.7% for the week ending Feb. 1, 2020, the Centers for Disease Control and Prevention reported. The baseline rate for the United States is 2.4%.
That rate of 6.7% is already above the highest rates recorded in eight of the last nine flu seasons, and another increase could mean a second, separate trip above 7.0% in the 2019-2020 season – something that has not occurred since national tracking began in 1997, CDC data show.
Those same data also show that,
Another important measure on the rise, the proportion of respiratory specimens testing positive for influenza, reached a new high for the season, 29.8%, during the week of Feb. 1, the CDC’s influenza division said.
Tests at clinical laboratories also show that predominance is continuing to switch from type B (45.6%) to type A (54.4%), the influenza division noted. Overall predominance for the season, however, continues to favor type B, 59.3% to 40.7%.
The percentage of deaths caused by pneumonia and influenza, which passed the threshold for epidemic of 7.2% back in early January, has been trending downward for the last 3 weeks and was 7.1% as of Feb. 1, according to the influenza division.
ILI-related deaths among children continue to remain high, with a total count of 78 for the season after another 10 deaths were reported during the week ending Feb. 1, the CDC reported. Comparable numbers for the last three seasons are 44 (2018-2019), 97 (2017-2018), and 35 (2016-2017).
The CDC estimates put the total number of ILIs at around 22 million for the season so far, leading to 210,000 hospitalizations. The agency said that it expects to release estimates of vaccine effectiveness later this month.
For the second time during the 2019-2020 flu season, activity measures have climbed into noteworthy territory.
The proportion of outpatient visits for influenza-like illness (ILI) reached its highest December level, 7.1%, since 2003 and then dropped for 2 weeks. Three weeks of increases since then, however, have the outpatient-visit rate at 6.7% for the week ending Feb. 1, 2020, the Centers for Disease Control and Prevention reported. The baseline rate for the United States is 2.4%.
That rate of 6.7% is already above the highest rates recorded in eight of the last nine flu seasons, and another increase could mean a second, separate trip above 7.0% in the 2019-2020 season – something that has not occurred since national tracking began in 1997, CDC data show.
Those same data also show that,
Another important measure on the rise, the proportion of respiratory specimens testing positive for influenza, reached a new high for the season, 29.8%, during the week of Feb. 1, the CDC’s influenza division said.
Tests at clinical laboratories also show that predominance is continuing to switch from type B (45.6%) to type A (54.4%), the influenza division noted. Overall predominance for the season, however, continues to favor type B, 59.3% to 40.7%.
The percentage of deaths caused by pneumonia and influenza, which passed the threshold for epidemic of 7.2% back in early January, has been trending downward for the last 3 weeks and was 7.1% as of Feb. 1, according to the influenza division.
ILI-related deaths among children continue to remain high, with a total count of 78 for the season after another 10 deaths were reported during the week ending Feb. 1, the CDC reported. Comparable numbers for the last three seasons are 44 (2018-2019), 97 (2017-2018), and 35 (2016-2017).
The CDC estimates put the total number of ILIs at around 22 million for the season so far, leading to 210,000 hospitalizations. The agency said that it expects to release estimates of vaccine effectiveness later this month.
FDA approves novel pandemic influenza vaccine
The Food and Drug Administration has approved the first and only adjuvanted, cell-based pandemic vaccine to provide active immunization against the influenza A virus H5N1 strain.
Influenza A (H5N1) monovalent vaccine, adjuvanted (Audenz, Seqirus) is for use in individuals aged 6 months and older. It’s designed to be rapidly deployed to help protect the U.S. population and can be stockpiled for first responders in the event of a pandemic.
The vaccine and formulated prefilled syringes used in the vaccine are produced in a state-of-the-art production facility built and supported through a multiyear public-private partnership between Seqirus and the Biomedical Advanced Research and Development Authority (BARDA), part of the Office of the Assistant Secretary for Preparedness and Response at the U.S. Department of Health & Human Services.
“Pandemic influenza viruses can be deadly and spread rapidly, making production of safe, effective vaccines essential in saving lives,” BARDA Director Rick Bright, PhD, said in a company news release.
“With this licensure – the latest FDA-approved vaccine to prevent H5N1 influenza — we celebrate a decade-long partnership to achieve health security goals set by the National Strategy for Pandemic Influenza and the 2019 Executive Order to speed the availability of influenza vaccine. Ultimately, this latest licensure means we can protect more people in an influenza pandemic,” said Bright.
“The approval of Audenz represents a key advance in influenza prevention and pandemic preparedness, combining leading-edge, cell-based manufacturing and adjuvant technologies,” Russell Basser, MD, chief scientist and senior vice president of research and development at Seqirus, said in the news release. “This pandemic influenza vaccine exemplifies our commitment to developing innovative technologies that can help provide rapid response during a pandemic emergency.”
Audenz had FDA fast track designation, a process designed to facilitate the development and expedite the review of drugs to treat serious conditions and fill an unmet medical need.
This article first appeared on Medscape.com.
The Food and Drug Administration has approved the first and only adjuvanted, cell-based pandemic vaccine to provide active immunization against the influenza A virus H5N1 strain.
Influenza A (H5N1) monovalent vaccine, adjuvanted (Audenz, Seqirus) is for use in individuals aged 6 months and older. It’s designed to be rapidly deployed to help protect the U.S. population and can be stockpiled for first responders in the event of a pandemic.
The vaccine and formulated prefilled syringes used in the vaccine are produced in a state-of-the-art production facility built and supported through a multiyear public-private partnership between Seqirus and the Biomedical Advanced Research and Development Authority (BARDA), part of the Office of the Assistant Secretary for Preparedness and Response at the U.S. Department of Health & Human Services.
“Pandemic influenza viruses can be deadly and spread rapidly, making production of safe, effective vaccines essential in saving lives,” BARDA Director Rick Bright, PhD, said in a company news release.
“With this licensure – the latest FDA-approved vaccine to prevent H5N1 influenza — we celebrate a decade-long partnership to achieve health security goals set by the National Strategy for Pandemic Influenza and the 2019 Executive Order to speed the availability of influenza vaccine. Ultimately, this latest licensure means we can protect more people in an influenza pandemic,” said Bright.
“The approval of Audenz represents a key advance in influenza prevention and pandemic preparedness, combining leading-edge, cell-based manufacturing and adjuvant technologies,” Russell Basser, MD, chief scientist and senior vice president of research and development at Seqirus, said in the news release. “This pandemic influenza vaccine exemplifies our commitment to developing innovative technologies that can help provide rapid response during a pandemic emergency.”
Audenz had FDA fast track designation, a process designed to facilitate the development and expedite the review of drugs to treat serious conditions and fill an unmet medical need.
This article first appeared on Medscape.com.
The Food and Drug Administration has approved the first and only adjuvanted, cell-based pandemic vaccine to provide active immunization against the influenza A virus H5N1 strain.
Influenza A (H5N1) monovalent vaccine, adjuvanted (Audenz, Seqirus) is for use in individuals aged 6 months and older. It’s designed to be rapidly deployed to help protect the U.S. population and can be stockpiled for first responders in the event of a pandemic.
The vaccine and formulated prefilled syringes used in the vaccine are produced in a state-of-the-art production facility built and supported through a multiyear public-private partnership between Seqirus and the Biomedical Advanced Research and Development Authority (BARDA), part of the Office of the Assistant Secretary for Preparedness and Response at the U.S. Department of Health & Human Services.
“Pandemic influenza viruses can be deadly and spread rapidly, making production of safe, effective vaccines essential in saving lives,” BARDA Director Rick Bright, PhD, said in a company news release.
“With this licensure – the latest FDA-approved vaccine to prevent H5N1 influenza — we celebrate a decade-long partnership to achieve health security goals set by the National Strategy for Pandemic Influenza and the 2019 Executive Order to speed the availability of influenza vaccine. Ultimately, this latest licensure means we can protect more people in an influenza pandemic,” said Bright.
“The approval of Audenz represents a key advance in influenza prevention and pandemic preparedness, combining leading-edge, cell-based manufacturing and adjuvant technologies,” Russell Basser, MD, chief scientist and senior vice president of research and development at Seqirus, said in the news release. “This pandemic influenza vaccine exemplifies our commitment to developing innovative technologies that can help provide rapid response during a pandemic emergency.”
Audenz had FDA fast track designation, a process designed to facilitate the development and expedite the review of drugs to treat serious conditions and fill an unmet medical need.
This article first appeared on Medscape.com.
Don’t forget about the flu: 2019-2010 season is not over
Nationally, an estimated 5.7% of all outpatients visiting health care providers had influenza-like illness (ILI) for the week ending Jan. 25, which was up from 5.1% the previous week but still lower than the current seasonal high of 7.1% recorded during the week of Dec. 22-28, the CDC’s influenza division reported.
Another key indicator of influenza activity, the percentage of respiratory specimens testing positive, also remains high as it rose from 25.7% the week before to 27.7% for the week ending Jan. 25, the influenza division said. That is the highest rate of the 2019-2020 season so far, surpassing the 26.8% reached during Dec. 22-28.
Another new seasonal high involves the number of states, 33 plus Puerto Rico, at the highest level of ILI activity on the CDC’s 1-10 scale for the latest reporting week, topping the 32 jurisdictions from the last full week of December. Another eight states and the District of Columbia were in the “high” range with activity levels of 8 and 9, and no state with available data was lower than level 6, the CDC data show.
Going along with the recent 2-week increase in activity is a large increase in the number of ILI-related pediatric deaths, which rose from 39 on Jan. 11 to the current count of 68, the CDC said. At the same point last year, there had been 36 pediatric deaths.
Other indicators of ILI severity, however, “are not high at this point in the season,” the influenza division noted. “Overall, hospitalization rates remain similar to what has been seen at this time during recent seasons, but rates among children and young adults are higher at this time than in recent seasons.” Overall pneumonia and influenza mortality is also low, the CDC added.
Nationally, an estimated 5.7% of all outpatients visiting health care providers had influenza-like illness (ILI) for the week ending Jan. 25, which was up from 5.1% the previous week but still lower than the current seasonal high of 7.1% recorded during the week of Dec. 22-28, the CDC’s influenza division reported.
Another key indicator of influenza activity, the percentage of respiratory specimens testing positive, also remains high as it rose from 25.7% the week before to 27.7% for the week ending Jan. 25, the influenza division said. That is the highest rate of the 2019-2020 season so far, surpassing the 26.8% reached during Dec. 22-28.
Another new seasonal high involves the number of states, 33 plus Puerto Rico, at the highest level of ILI activity on the CDC’s 1-10 scale for the latest reporting week, topping the 32 jurisdictions from the last full week of December. Another eight states and the District of Columbia were in the “high” range with activity levels of 8 and 9, and no state with available data was lower than level 6, the CDC data show.
Going along with the recent 2-week increase in activity is a large increase in the number of ILI-related pediatric deaths, which rose from 39 on Jan. 11 to the current count of 68, the CDC said. At the same point last year, there had been 36 pediatric deaths.
Other indicators of ILI severity, however, “are not high at this point in the season,” the influenza division noted. “Overall, hospitalization rates remain similar to what has been seen at this time during recent seasons, but rates among children and young adults are higher at this time than in recent seasons.” Overall pneumonia and influenza mortality is also low, the CDC added.
Nationally, an estimated 5.7% of all outpatients visiting health care providers had influenza-like illness (ILI) for the week ending Jan. 25, which was up from 5.1% the previous week but still lower than the current seasonal high of 7.1% recorded during the week of Dec. 22-28, the CDC’s influenza division reported.
Another key indicator of influenza activity, the percentage of respiratory specimens testing positive, also remains high as it rose from 25.7% the week before to 27.7% for the week ending Jan. 25, the influenza division said. That is the highest rate of the 2019-2020 season so far, surpassing the 26.8% reached during Dec. 22-28.
Another new seasonal high involves the number of states, 33 plus Puerto Rico, at the highest level of ILI activity on the CDC’s 1-10 scale for the latest reporting week, topping the 32 jurisdictions from the last full week of December. Another eight states and the District of Columbia were in the “high” range with activity levels of 8 and 9, and no state with available data was lower than level 6, the CDC data show.
Going along with the recent 2-week increase in activity is a large increase in the number of ILI-related pediatric deaths, which rose from 39 on Jan. 11 to the current count of 68, the CDC said. At the same point last year, there had been 36 pediatric deaths.
Other indicators of ILI severity, however, “are not high at this point in the season,” the influenza division noted. “Overall, hospitalization rates remain similar to what has been seen at this time during recent seasons, but rates among children and young adults are higher at this time than in recent seasons.” Overall pneumonia and influenza mortality is also low, the CDC added.
Flu activity declines for second straight week
Flu activity dropped nationally for a second consecutive week, but the changing predominance in type from influenza B to A suggests that “it is too early to know whether the season has peaked,” the Centers for Disease Control and Prevention said Jan. 17.
Patients with influenza-like illness (ILI) dropped from 5.7% to 4.7% of all visits to outpatient providers for the week ending Jan. 11, and the proportion of respiratory specimens positive for influenza decreased from 23.6% the week before to 22.9%, the CDC’s influenza division reported.
Despite that overall drop in positive specimens, however, “the percent positive for influenza A viruses increased and some regions are seeing increases in the proportion of influenza A(H1N1)pdm09 viruses compared to other influenza viruses,” the influenza division noted.
Outpatient activity on the state level also was down for the week. There were 23 jurisdictions – 21 states, New York City, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of ILI activity for the week ending Jan. 11, compared with 33 the previous week, data from the CDC’s Outpatient Influenza-like Illness Surveillance Network show.
Indicators of ILI severity have not risen to high levels. “The percentage of deaths attributed to pneumonia and influenza increased from 6.0% to 6.9% but remains below the epidemic threshold” of 7.0% for the week, and the hospitalization rate remains at a fairly typical level for this time of year, the influenza division said.
For the week ending Jan. 11, 7 new ILI-related pediatric deaths were reported, which brings the total to 39 for the 2019-2020 season. Children aged 0-4 years are the second-most likely age group to be hospitalized with the flu (34.4/100,000 population) after adults aged 65 years and older, who have a cumulative rate of 47.6/100,000 for the season, the CDC reported.
Flu activity dropped nationally for a second consecutive week, but the changing predominance in type from influenza B to A suggests that “it is too early to know whether the season has peaked,” the Centers for Disease Control and Prevention said Jan. 17.
Patients with influenza-like illness (ILI) dropped from 5.7% to 4.7% of all visits to outpatient providers for the week ending Jan. 11, and the proportion of respiratory specimens positive for influenza decreased from 23.6% the week before to 22.9%, the CDC’s influenza division reported.
Despite that overall drop in positive specimens, however, “the percent positive for influenza A viruses increased and some regions are seeing increases in the proportion of influenza A(H1N1)pdm09 viruses compared to other influenza viruses,” the influenza division noted.
Outpatient activity on the state level also was down for the week. There were 23 jurisdictions – 21 states, New York City, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of ILI activity for the week ending Jan. 11, compared with 33 the previous week, data from the CDC’s Outpatient Influenza-like Illness Surveillance Network show.
Indicators of ILI severity have not risen to high levels. “The percentage of deaths attributed to pneumonia and influenza increased from 6.0% to 6.9% but remains below the epidemic threshold” of 7.0% for the week, and the hospitalization rate remains at a fairly typical level for this time of year, the influenza division said.
For the week ending Jan. 11, 7 new ILI-related pediatric deaths were reported, which brings the total to 39 for the 2019-2020 season. Children aged 0-4 years are the second-most likely age group to be hospitalized with the flu (34.4/100,000 population) after adults aged 65 years and older, who have a cumulative rate of 47.6/100,000 for the season, the CDC reported.
Flu activity dropped nationally for a second consecutive week, but the changing predominance in type from influenza B to A suggests that “it is too early to know whether the season has peaked,” the Centers for Disease Control and Prevention said Jan. 17.
Patients with influenza-like illness (ILI) dropped from 5.7% to 4.7% of all visits to outpatient providers for the week ending Jan. 11, and the proportion of respiratory specimens positive for influenza decreased from 23.6% the week before to 22.9%, the CDC’s influenza division reported.
Despite that overall drop in positive specimens, however, “the percent positive for influenza A viruses increased and some regions are seeing increases in the proportion of influenza A(H1N1)pdm09 viruses compared to other influenza viruses,” the influenza division noted.
Outpatient activity on the state level also was down for the week. There were 23 jurisdictions – 21 states, New York City, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of ILI activity for the week ending Jan. 11, compared with 33 the previous week, data from the CDC’s Outpatient Influenza-like Illness Surveillance Network show.
Indicators of ILI severity have not risen to high levels. “The percentage of deaths attributed to pneumonia and influenza increased from 6.0% to 6.9% but remains below the epidemic threshold” of 7.0% for the week, and the hospitalization rate remains at a fairly typical level for this time of year, the influenza division said.
For the week ending Jan. 11, 7 new ILI-related pediatric deaths were reported, which brings the total to 39 for the 2019-2020 season. Children aged 0-4 years are the second-most likely age group to be hospitalized with the flu (34.4/100,000 population) after adults aged 65 years and older, who have a cumulative rate of 47.6/100,000 for the season, the CDC reported.
Drop in flu activity may not signal seasonal peak
A key indicator of flu activity dropped but remains high, but measures of severity have not yet shown any unusual increases, according to the Centers for Disease Control and Prevention.
Patients with influenza-like illness (ILI) made up an estimated 5.8% of the visits to outpatient providers during the week ending Jan. 4, and that’s a decline from 7.0% for the last full week of 2019, the CDC’s influenza division reported.
That 7.0% outpatient ILI visit rate was the highest seen in December since 2003, but “hospitalization rates and percent of deaths due to pneumonia and influenza remain low,” the influenza division said in its weekly report.
Influenza B/Victoria and influenza A(H1N1)pdm09 viruses have been the predominant strains so far this season, and they “are more likely to affect children and younger adults than the elderly. Because the majority of hospitalizations and deaths occur among people age 65 and older, with fewer illnesses among that group, we expect, on a population level, to see less impact in flu-related hospitalizations and deaths,” the CDC said.
Last year, there was a similar drop in the outpatient ILI rate in early January after visits rose through December. The rate then increased for another 5 weeks before peaking at 5.0% in February. A similar pattern also occurred during the 2016-2017 and 2015-2016 seasons, CDC data show.
The nationwide ILI hospitalization rate, which is cumulative through the season, was up to 14.6 per 100,000 population for the week ending Jan. 4, the CDC said. Here are the corresponding rates for each of the last five seasons:
- 11.6 (2018-2019).
- 30.5 (2017-2018).
- 12.2 (2016-2017).
- 1.8 (2015-2016).
- 38.3 (2014-2015).
There were five new ILI-related pediatric deaths reported for the week ending Jan. 4, two of which occurred the week before. The total is now up to 32 for the 2019-2020 season, the CDC said in the weekly report. Last season, there were 21 pediatric deaths through the first January report, compared with 42 during the 2017-2018 season and 13 in 2016-2017.
A key indicator of flu activity dropped but remains high, but measures of severity have not yet shown any unusual increases, according to the Centers for Disease Control and Prevention.
Patients with influenza-like illness (ILI) made up an estimated 5.8% of the visits to outpatient providers during the week ending Jan. 4, and that’s a decline from 7.0% for the last full week of 2019, the CDC’s influenza division reported.
That 7.0% outpatient ILI visit rate was the highest seen in December since 2003, but “hospitalization rates and percent of deaths due to pneumonia and influenza remain low,” the influenza division said in its weekly report.
Influenza B/Victoria and influenza A(H1N1)pdm09 viruses have been the predominant strains so far this season, and they “are more likely to affect children and younger adults than the elderly. Because the majority of hospitalizations and deaths occur among people age 65 and older, with fewer illnesses among that group, we expect, on a population level, to see less impact in flu-related hospitalizations and deaths,” the CDC said.
Last year, there was a similar drop in the outpatient ILI rate in early January after visits rose through December. The rate then increased for another 5 weeks before peaking at 5.0% in February. A similar pattern also occurred during the 2016-2017 and 2015-2016 seasons, CDC data show.
The nationwide ILI hospitalization rate, which is cumulative through the season, was up to 14.6 per 100,000 population for the week ending Jan. 4, the CDC said. Here are the corresponding rates for each of the last five seasons:
- 11.6 (2018-2019).
- 30.5 (2017-2018).
- 12.2 (2016-2017).
- 1.8 (2015-2016).
- 38.3 (2014-2015).
There were five new ILI-related pediatric deaths reported for the week ending Jan. 4, two of which occurred the week before. The total is now up to 32 for the 2019-2020 season, the CDC said in the weekly report. Last season, there were 21 pediatric deaths through the first January report, compared with 42 during the 2017-2018 season and 13 in 2016-2017.
A key indicator of flu activity dropped but remains high, but measures of severity have not yet shown any unusual increases, according to the Centers for Disease Control and Prevention.
Patients with influenza-like illness (ILI) made up an estimated 5.8% of the visits to outpatient providers during the week ending Jan. 4, and that’s a decline from 7.0% for the last full week of 2019, the CDC’s influenza division reported.
That 7.0% outpatient ILI visit rate was the highest seen in December since 2003, but “hospitalization rates and percent of deaths due to pneumonia and influenza remain low,” the influenza division said in its weekly report.
Influenza B/Victoria and influenza A(H1N1)pdm09 viruses have been the predominant strains so far this season, and they “are more likely to affect children and younger adults than the elderly. Because the majority of hospitalizations and deaths occur among people age 65 and older, with fewer illnesses among that group, we expect, on a population level, to see less impact in flu-related hospitalizations and deaths,” the CDC said.
Last year, there was a similar drop in the outpatient ILI rate in early January after visits rose through December. The rate then increased for another 5 weeks before peaking at 5.0% in February. A similar pattern also occurred during the 2016-2017 and 2015-2016 seasons, CDC data show.
The nationwide ILI hospitalization rate, which is cumulative through the season, was up to 14.6 per 100,000 population for the week ending Jan. 4, the CDC said. Here are the corresponding rates for each of the last five seasons:
- 11.6 (2018-2019).
- 30.5 (2017-2018).
- 12.2 (2016-2017).
- 1.8 (2015-2016).
- 38.3 (2014-2015).
There were five new ILI-related pediatric deaths reported for the week ending Jan. 4, two of which occurred the week before. The total is now up to 32 for the 2019-2020 season, the CDC said in the weekly report. Last season, there were 21 pediatric deaths through the first January report, compared with 42 during the 2017-2018 season and 13 in 2016-2017.
Flu records most active December since 2003
The 2019-2020 flu season took a big jump in severity during the last full week of 2019, according to the Centers for Disease Control and Prevention.
For the week ending Dec. 28, 6.9% of all outpatient visits to health care providers were for influenza-like illness (ILI), the CDC’s influenza division reported Jan. 3. That is up from 5.1% the previous week and is the highest rate recorded in December since 2003. During the flu pandemic season of 2009-2010, the rate peaked in October and dropped to relatively normal levels by the end of November, CDC data show.
This marks the eighth consecutive week that the outpatient visit rate has been at or above the nation’s baseline level of 2.4%, but the data for this week “may in part be influenced by changes in healthcare-seeking behavior that can occur during the holidays,” the CDC suggested.
All those outpatient visits mean that the ILI activity map is getting quite red. Thirty states, as well as the District of Columbia and Puerto Rico, were at the highest level on the CDC’s 1-10 activity scale during the week ending Dec. 28, compared with 20 the week before. Four states were categorized in the “high” range with activity levels of 8 and 9.
There have been approximately 6.4 million flu illnesses so far this season, the CDC estimated, along with 55,000 hospitalizations, although the ILI admission rate of 9.2 per 100,000 population is fairly typical for this time of year.
The week of Dec. 28 also brought reports of five more ILI-related pediatric deaths, which all occurred in the two previous weeks. A total of 27 children have died from the flu so far during the 2019-2020 season, the CDC said.
The 2019-2020 flu season took a big jump in severity during the last full week of 2019, according to the Centers for Disease Control and Prevention.
For the week ending Dec. 28, 6.9% of all outpatient visits to health care providers were for influenza-like illness (ILI), the CDC’s influenza division reported Jan. 3. That is up from 5.1% the previous week and is the highest rate recorded in December since 2003. During the flu pandemic season of 2009-2010, the rate peaked in October and dropped to relatively normal levels by the end of November, CDC data show.
This marks the eighth consecutive week that the outpatient visit rate has been at or above the nation’s baseline level of 2.4%, but the data for this week “may in part be influenced by changes in healthcare-seeking behavior that can occur during the holidays,” the CDC suggested.
All those outpatient visits mean that the ILI activity map is getting quite red. Thirty states, as well as the District of Columbia and Puerto Rico, were at the highest level on the CDC’s 1-10 activity scale during the week ending Dec. 28, compared with 20 the week before. Four states were categorized in the “high” range with activity levels of 8 and 9.
There have been approximately 6.4 million flu illnesses so far this season, the CDC estimated, along with 55,000 hospitalizations, although the ILI admission rate of 9.2 per 100,000 population is fairly typical for this time of year.
The week of Dec. 28 also brought reports of five more ILI-related pediatric deaths, which all occurred in the two previous weeks. A total of 27 children have died from the flu so far during the 2019-2020 season, the CDC said.
The 2019-2020 flu season took a big jump in severity during the last full week of 2019, according to the Centers for Disease Control and Prevention.
For the week ending Dec. 28, 6.9% of all outpatient visits to health care providers were for influenza-like illness (ILI), the CDC’s influenza division reported Jan. 3. That is up from 5.1% the previous week and is the highest rate recorded in December since 2003. During the flu pandemic season of 2009-2010, the rate peaked in October and dropped to relatively normal levels by the end of November, CDC data show.
This marks the eighth consecutive week that the outpatient visit rate has been at or above the nation’s baseline level of 2.4%, but the data for this week “may in part be influenced by changes in healthcare-seeking behavior that can occur during the holidays,” the CDC suggested.
All those outpatient visits mean that the ILI activity map is getting quite red. Thirty states, as well as the District of Columbia and Puerto Rico, were at the highest level on the CDC’s 1-10 activity scale during the week ending Dec. 28, compared with 20 the week before. Four states were categorized in the “high” range with activity levels of 8 and 9.
There have been approximately 6.4 million flu illnesses so far this season, the CDC estimated, along with 55,000 hospitalizations, although the ILI admission rate of 9.2 per 100,000 population is fairly typical for this time of year.
The week of Dec. 28 also brought reports of five more ILI-related pediatric deaths, which all occurred in the two previous weeks. A total of 27 children have died from the flu so far during the 2019-2020 season, the CDC said.
Early increase in flu activity shows no signs of slowing
An important measure of U.S. flu activity for the 2019-2020 season has already surpassed last season’s high, and more than half the states are experiencing high levels of activity, according to the Centers for Disease Control and Prevention.
reported Dec. 27.
The last time the outpatient visit rate was higher than that was in February of the 2017-2018 season, when it peaked at 7.5%. The peak month of flu activity occurs most often – about once every 3 years – in February, and the odds of a December peak are about one in five, the CDC has said.
Outpatient illness activity also increased at the state level during the week ending Dec. 21. There were 20 jurisdictions – 18 states, the District of Columbia, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of activity, compared with 13 the previous week, and the number of jurisdictions in the “high” range (levels 8-10) jumped from 21 to 28, the CDC data show.
The influenza division estimated that there have been 4.6 million flu illnesses so far this season, nearly a million more than the total after last week, along with 39,000 hospitalizations. The overall hospitalization rate for the season is up to 6.6 per 100,000 population, which is about average at this point. The proportion of deaths attributed to pneumonia and influenza increased to 5.7%, which is below the epidemic threshold, the CDC said.
Three pediatric deaths related to influenza-like illness were reported during the week ending Dec. 21, two of which occurred in an earlier week. For the 2019-2020 season so far, a total of 22 pediatric deaths have been reported to the CDC.
An important measure of U.S. flu activity for the 2019-2020 season has already surpassed last season’s high, and more than half the states are experiencing high levels of activity, according to the Centers for Disease Control and Prevention.
reported Dec. 27.
The last time the outpatient visit rate was higher than that was in February of the 2017-2018 season, when it peaked at 7.5%. The peak month of flu activity occurs most often – about once every 3 years – in February, and the odds of a December peak are about one in five, the CDC has said.
Outpatient illness activity also increased at the state level during the week ending Dec. 21. There were 20 jurisdictions – 18 states, the District of Columbia, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of activity, compared with 13 the previous week, and the number of jurisdictions in the “high” range (levels 8-10) jumped from 21 to 28, the CDC data show.
The influenza division estimated that there have been 4.6 million flu illnesses so far this season, nearly a million more than the total after last week, along with 39,000 hospitalizations. The overall hospitalization rate for the season is up to 6.6 per 100,000 population, which is about average at this point. The proportion of deaths attributed to pneumonia and influenza increased to 5.7%, which is below the epidemic threshold, the CDC said.
Three pediatric deaths related to influenza-like illness were reported during the week ending Dec. 21, two of which occurred in an earlier week. For the 2019-2020 season so far, a total of 22 pediatric deaths have been reported to the CDC.
An important measure of U.S. flu activity for the 2019-2020 season has already surpassed last season’s high, and more than half the states are experiencing high levels of activity, according to the Centers for Disease Control and Prevention.
reported Dec. 27.
The last time the outpatient visit rate was higher than that was in February of the 2017-2018 season, when it peaked at 7.5%. The peak month of flu activity occurs most often – about once every 3 years – in February, and the odds of a December peak are about one in five, the CDC has said.
Outpatient illness activity also increased at the state level during the week ending Dec. 21. There were 20 jurisdictions – 18 states, the District of Columbia, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of activity, compared with 13 the previous week, and the number of jurisdictions in the “high” range (levels 8-10) jumped from 21 to 28, the CDC data show.
The influenza division estimated that there have been 4.6 million flu illnesses so far this season, nearly a million more than the total after last week, along with 39,000 hospitalizations. The overall hospitalization rate for the season is up to 6.6 per 100,000 population, which is about average at this point. The proportion of deaths attributed to pneumonia and influenza increased to 5.7%, which is below the epidemic threshold, the CDC said.
Three pediatric deaths related to influenza-like illness were reported during the week ending Dec. 21, two of which occurred in an earlier week. For the 2019-2020 season so far, a total of 22 pediatric deaths have been reported to the CDC.
Influenza activity continues to be unusually high
The 2019-2020 flu season continues its unusually early rise in activity, with the Centers for Disease Control and Prevention estimating that 3.7 million cases have occurred through Dec. 14.
which is up from 3.2% the previous week and is the sixth consecutive week that the United States has been at or above the national baseline of 2.4%, the CDC reported Dec. 20. This year’s 3.9% is the highest mid-December rate recorded since 2003, when it reached almost 7.4%.
Most of the influenza activity so far this season is being driven by influenza B/Victoria viruses. Nationwide testing puts influenza B prevalence at 68.5% of all positive specimens, exactly the same as last week, but A(H1N1) viruses “are increasing in proportion relative to other influenza viruses in some regions,” the CDC’s influenza division said.
A look at this week’s activity map shows that 21 states, compared with 12 last week, were in the “high” range of activity – that’s levels 8-10 on the CDC’s 1-10 scale. Twelve of those states, along with Puerto Rico, were at level 10, which was up from nine a week earlier, the CDC said.
The overall hospitalization rate through the week of Dec. 8-14 (5.5 per 100,000 population) “is similar to what has been seen at this time during recent seasons,” the CDC noted. The highest rates are occurring among adults over age 65 years (12.7 per 100,000) and children aged 0-4 years (10.9 per 100,000).
Three ILI-related deaths among children that occurred last week were reported, which brings the total for the 2019-2020 season to 19, the CDC said.
The 2019-2020 flu season continues its unusually early rise in activity, with the Centers for Disease Control and Prevention estimating that 3.7 million cases have occurred through Dec. 14.
which is up from 3.2% the previous week and is the sixth consecutive week that the United States has been at or above the national baseline of 2.4%, the CDC reported Dec. 20. This year’s 3.9% is the highest mid-December rate recorded since 2003, when it reached almost 7.4%.
Most of the influenza activity so far this season is being driven by influenza B/Victoria viruses. Nationwide testing puts influenza B prevalence at 68.5% of all positive specimens, exactly the same as last week, but A(H1N1) viruses “are increasing in proportion relative to other influenza viruses in some regions,” the CDC’s influenza division said.
A look at this week’s activity map shows that 21 states, compared with 12 last week, were in the “high” range of activity – that’s levels 8-10 on the CDC’s 1-10 scale. Twelve of those states, along with Puerto Rico, were at level 10, which was up from nine a week earlier, the CDC said.
The overall hospitalization rate through the week of Dec. 8-14 (5.5 per 100,000 population) “is similar to what has been seen at this time during recent seasons,” the CDC noted. The highest rates are occurring among adults over age 65 years (12.7 per 100,000) and children aged 0-4 years (10.9 per 100,000).
Three ILI-related deaths among children that occurred last week were reported, which brings the total for the 2019-2020 season to 19, the CDC said.
The 2019-2020 flu season continues its unusually early rise in activity, with the Centers for Disease Control and Prevention estimating that 3.7 million cases have occurred through Dec. 14.
which is up from 3.2% the previous week and is the sixth consecutive week that the United States has been at or above the national baseline of 2.4%, the CDC reported Dec. 20. This year’s 3.9% is the highest mid-December rate recorded since 2003, when it reached almost 7.4%.
Most of the influenza activity so far this season is being driven by influenza B/Victoria viruses. Nationwide testing puts influenza B prevalence at 68.5% of all positive specimens, exactly the same as last week, but A(H1N1) viruses “are increasing in proportion relative to other influenza viruses in some regions,” the CDC’s influenza division said.
A look at this week’s activity map shows that 21 states, compared with 12 last week, were in the “high” range of activity – that’s levels 8-10 on the CDC’s 1-10 scale. Twelve of those states, along with Puerto Rico, were at level 10, which was up from nine a week earlier, the CDC said.
The overall hospitalization rate through the week of Dec. 8-14 (5.5 per 100,000 population) “is similar to what has been seen at this time during recent seasons,” the CDC noted. The highest rates are occurring among adults over age 65 years (12.7 per 100,000) and children aged 0-4 years (10.9 per 100,000).
Three ILI-related deaths among children that occurred last week were reported, which brings the total for the 2019-2020 season to 19, the CDC said.