Optimal timing of influenza vaccination in young children: population based cohort study.

ABSTRACT:

Objective

To assess optimal timing of influenza vaccination in young children.

Design

Population based cohort study.

Setting

United States.

Participants

Commercially insured children aged 2-5 years who were vaccinated against influenza during 2011-18.

Main outcome measure

Rates of diagnosis of influenza among children who were vaccinated against influenza, by birth month.

Results

Overall, 819 223 children aged 2-5 received influenza vaccination. Children vaccinated in November and December were least likely to have a diagnosis of influenza, a finding that may be confounded by unmeasured factors that influence the timing of vaccination and risk of influenza. Vaccination commonly occurred on days of preventive care visits and during birth months. Ch

SUBMITTER: Worsham CM 

PROVIDER: S-EPMC10879981 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature