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Vaccination rates among kindergartners in the United States dipped below the Healthy People 2030 target of 95% in 2020-2021, according to the latest figures from the Centers for Disease Control and Prevention.

Data from 47 states and the District of Columbia, reported in the Morbidity and Mortality Weekly Report, showed the rates dipped by about 1 percentage point, compared with the previous school year for state-required vaccines. Coverage nationally was 93.9% for two doses of the MMR vaccine, 93.6% for the required number of doses of DTaP, and 93.6% for the state-required doses of varicella vaccine.

“This might not sound like much,” Georgina Peacock, MD, MPH, acting director of CDC’s immunization services division said in a press briefing. “But it amounts to at least 35,000 more children across the United States that entered kindergarten without documentation of complete vaccination against common diseases like measles, whooping cough, and chickenpox.”

The report authors, led by Ranee Seither, MPH, with the immunization services division of the CDC’s National Center for Immunization and Respiratory Diseases, said the COVID-19 pandemic played a large part in the dip as children missed doctors’ appointments and states relaxed requirements with remote instruction.

States reported reluctance by parents to schedule well-child appointments and reduced access to office visits as well as longer grace periods or provisional enrollment. There was also less submission of documentation by parents, less time for school nurses to follow-up with students to document vaccines, fewer staff members to conduct kindergarten vaccination coverage assessment, lower response rates from schools, and both extended and compressed kindergarten vaccination coverage data collection schedules.

“There’s a greater proportion of parents who are questioning routine vaccines,” Jason V. Terk, MD, a Texas pediatrician and a spokesman for the American Academy of Pediatrics, told the New York Times. He said misinformation “fed the fire of distrust and skepticism that is really sort of the new pandemic of hesitancy for routine vaccines.”

The authors of the CDC report wrote: “As schools continue to return to in-person learning, enforcement of vaccination policies and follow-up with undervaccinated students are important to improve vaccination coverage.”

They urged schools and immunization programs to reach out to first-time students, including kindergartners and first-graders, and follow up with undervaccinated students.

The rate of people having an exemption from at least one vaccine remained low at 2.2% and the percentage of children with exemptions decreased in 37 states. However, an additional 3.9% who did not have a vaccine exemption were not up to date for MMR, according to the report.

Mississippi and New York had the smallest percentage of exemptions (0.1%) and Idaho had the most (8.2%). In the 2019-2020 school year, 2.5% reported an exemption from at least one vaccine. Nationally, 0.2% of kindergartners had a medical exemption and 1.9% had a nonmedical exemption.

Vaccination rates also differed among states. The New York Times noted that Maryland had a 10% drop in MMR vaccine coverage, while Wisconsin, Georgia, Wyoming, and Kentucky had declines of about 5%.

Among states reporting the measures in 2020-2021, the proportion of kindergartners attending school with no documentation of required vaccinations or exemptions ranged from 0.1% (Pennsylvania and Virginia) to 8.3% (Maryland). The state with the lowest proportion of kindergarteners out of compliance was Florida (0.2%) and Indiana had the highest out-of-compliance rate at 16.6%.

Comparing states’ performance is difficult, the authors noted, because they vary as to which vaccine and number of doses they require and by what date and what documentation they require. They also vary by data collection methods; exemptions allowed; grace period rules and provisional enrollment.

The authors, Dr. Peacock, and Dr. Terk reported no relevant financial disclosures.

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Vaccination rates among kindergartners in the United States dipped below the Healthy People 2030 target of 95% in 2020-2021, according to the latest figures from the Centers for Disease Control and Prevention.

Data from 47 states and the District of Columbia, reported in the Morbidity and Mortality Weekly Report, showed the rates dipped by about 1 percentage point, compared with the previous school year for state-required vaccines. Coverage nationally was 93.9% for two doses of the MMR vaccine, 93.6% for the required number of doses of DTaP, and 93.6% for the state-required doses of varicella vaccine.

“This might not sound like much,” Georgina Peacock, MD, MPH, acting director of CDC’s immunization services division said in a press briefing. “But it amounts to at least 35,000 more children across the United States that entered kindergarten without documentation of complete vaccination against common diseases like measles, whooping cough, and chickenpox.”

The report authors, led by Ranee Seither, MPH, with the immunization services division of the CDC’s National Center for Immunization and Respiratory Diseases, said the COVID-19 pandemic played a large part in the dip as children missed doctors’ appointments and states relaxed requirements with remote instruction.

States reported reluctance by parents to schedule well-child appointments and reduced access to office visits as well as longer grace periods or provisional enrollment. There was also less submission of documentation by parents, less time for school nurses to follow-up with students to document vaccines, fewer staff members to conduct kindergarten vaccination coverage assessment, lower response rates from schools, and both extended and compressed kindergarten vaccination coverage data collection schedules.

“There’s a greater proportion of parents who are questioning routine vaccines,” Jason V. Terk, MD, a Texas pediatrician and a spokesman for the American Academy of Pediatrics, told the New York Times. He said misinformation “fed the fire of distrust and skepticism that is really sort of the new pandemic of hesitancy for routine vaccines.”

The authors of the CDC report wrote: “As schools continue to return to in-person learning, enforcement of vaccination policies and follow-up with undervaccinated students are important to improve vaccination coverage.”

They urged schools and immunization programs to reach out to first-time students, including kindergartners and first-graders, and follow up with undervaccinated students.

The rate of people having an exemption from at least one vaccine remained low at 2.2% and the percentage of children with exemptions decreased in 37 states. However, an additional 3.9% who did not have a vaccine exemption were not up to date for MMR, according to the report.

Mississippi and New York had the smallest percentage of exemptions (0.1%) and Idaho had the most (8.2%). In the 2019-2020 school year, 2.5% reported an exemption from at least one vaccine. Nationally, 0.2% of kindergartners had a medical exemption and 1.9% had a nonmedical exemption.

Vaccination rates also differed among states. The New York Times noted that Maryland had a 10% drop in MMR vaccine coverage, while Wisconsin, Georgia, Wyoming, and Kentucky had declines of about 5%.

Among states reporting the measures in 2020-2021, the proportion of kindergartners attending school with no documentation of required vaccinations or exemptions ranged from 0.1% (Pennsylvania and Virginia) to 8.3% (Maryland). The state with the lowest proportion of kindergarteners out of compliance was Florida (0.2%) and Indiana had the highest out-of-compliance rate at 16.6%.

Comparing states’ performance is difficult, the authors noted, because they vary as to which vaccine and number of doses they require and by what date and what documentation they require. They also vary by data collection methods; exemptions allowed; grace period rules and provisional enrollment.

The authors, Dr. Peacock, and Dr. Terk reported no relevant financial disclosures.

Vaccination rates among kindergartners in the United States dipped below the Healthy People 2030 target of 95% in 2020-2021, according to the latest figures from the Centers for Disease Control and Prevention.

Data from 47 states and the District of Columbia, reported in the Morbidity and Mortality Weekly Report, showed the rates dipped by about 1 percentage point, compared with the previous school year for state-required vaccines. Coverage nationally was 93.9% for two doses of the MMR vaccine, 93.6% for the required number of doses of DTaP, and 93.6% for the state-required doses of varicella vaccine.

“This might not sound like much,” Georgina Peacock, MD, MPH, acting director of CDC’s immunization services division said in a press briefing. “But it amounts to at least 35,000 more children across the United States that entered kindergarten without documentation of complete vaccination against common diseases like measles, whooping cough, and chickenpox.”

The report authors, led by Ranee Seither, MPH, with the immunization services division of the CDC’s National Center for Immunization and Respiratory Diseases, said the COVID-19 pandemic played a large part in the dip as children missed doctors’ appointments and states relaxed requirements with remote instruction.

States reported reluctance by parents to schedule well-child appointments and reduced access to office visits as well as longer grace periods or provisional enrollment. There was also less submission of documentation by parents, less time for school nurses to follow-up with students to document vaccines, fewer staff members to conduct kindergarten vaccination coverage assessment, lower response rates from schools, and both extended and compressed kindergarten vaccination coverage data collection schedules.

“There’s a greater proportion of parents who are questioning routine vaccines,” Jason V. Terk, MD, a Texas pediatrician and a spokesman for the American Academy of Pediatrics, told the New York Times. He said misinformation “fed the fire of distrust and skepticism that is really sort of the new pandemic of hesitancy for routine vaccines.”

The authors of the CDC report wrote: “As schools continue to return to in-person learning, enforcement of vaccination policies and follow-up with undervaccinated students are important to improve vaccination coverage.”

They urged schools and immunization programs to reach out to first-time students, including kindergartners and first-graders, and follow up with undervaccinated students.

The rate of people having an exemption from at least one vaccine remained low at 2.2% and the percentage of children with exemptions decreased in 37 states. However, an additional 3.9% who did not have a vaccine exemption were not up to date for MMR, according to the report.

Mississippi and New York had the smallest percentage of exemptions (0.1%) and Idaho had the most (8.2%). In the 2019-2020 school year, 2.5% reported an exemption from at least one vaccine. Nationally, 0.2% of kindergartners had a medical exemption and 1.9% had a nonmedical exemption.

Vaccination rates also differed among states. The New York Times noted that Maryland had a 10% drop in MMR vaccine coverage, while Wisconsin, Georgia, Wyoming, and Kentucky had declines of about 5%.

Among states reporting the measures in 2020-2021, the proportion of kindergartners attending school with no documentation of required vaccinations or exemptions ranged from 0.1% (Pennsylvania and Virginia) to 8.3% (Maryland). The state with the lowest proportion of kindergarteners out of compliance was Florida (0.2%) and Indiana had the highest out-of-compliance rate at 16.6%.

Comparing states’ performance is difficult, the authors noted, because they vary as to which vaccine and number of doses they require and by what date and what documentation they require. They also vary by data collection methods; exemptions allowed; grace period rules and provisional enrollment.

The authors, Dr. Peacock, and Dr. Terk reported no relevant financial disclosures.

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