Effectiveness of seasonal influenza vaccine in elementary and middle schools: a 10-year follow-up investigation.

ABSTRACT:

Background

Influenza spreads from schools to the rest of society. Thus, we conducted questionnaire surveys of influenza vaccination in elementary and middle schools in a district for 10 years to determine immunization rates and infection conditions among students who were potential sources of infection at home.

Methods

The questionnaire-based survey on influenza vaccine administration, influenza infection, and influenza types contracted, as well as influenza immunization history, was conducted in 10 seasons over a period of 10 years.

Results

In elementary schools, vaccination was associated with lower morbidity in most years, whereas in middle schools, morbidity increased among students who were vaccinated every year. Our study did not find consistent trends among fac

SUBMITTER: Kajiume T 

PROVIDER: S-EPMC9724312 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature