Total, 15.4% of youngsters aged 0 to 35 months obtain an invalid vaccine dose, receiving a vaccine earlier or later than beneficial, in keeping with a research printed on-line Jan. 10 in Pediatrics.
Alexandria N. Albers, M.P.H., from the College of Montana in Missoula, and colleagues analyzed provider-verified vaccination data from the 2011 to 2020 Nationwide Immunization Survey-Little one to quantify the prevalence of invalid doses amongst U.S. kids aged 0 to 35 months. Invalid doses are these supplied outdoors the Advisory Committee on Immunization Practices for minimal and most ages of vaccination and minimal intervals between doses.
The researchers discovered that 22,209 of 161,187 kids (weighted %, 15.4%) had an invalid vaccine dose. Total, 44.9% of youngsters with a minimal age or minimal interval invalid dose acquired further doses and accomplished the collection. The best prevalence of invalid doses was seen for the three-dose rotavirus (4.4%), with 3.1% having the primary dose administered after the utmost age. From 2011 to 2020, there was a lower seen within the share of youngsters with an invalid dose (16.9 to 12.5%). The chances of an invalid dose had been larger for youngsters who moved throughout state strains versus those that didn’t (adjusted odds ratio, 1.5).
“To reduce invalid vaccine administration overall, equity-based national and state investments in immunization information systems and clinical support tools that help providers make accurate recommendations are needed in all settings where children receive vaccinations,” the authors write.
Extra data:
Alexandria N. Albers et al, Invalid Vaccine Doses Amongst Kids Aged 0 to 35 Months: 2011 to 2020, Pediatrics (2025). DOI: 10.1542/peds.2024-068341
David G Bundy, Vaccination Timing: Threading the Needle Between “Too Early” and “Too Late”, Pediatrics (2025). DOI: 10.1542/peds.2024-068972
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