Influenza vaccination of schoolchildren and influenza outbreaks in a school

Shioko Kawai, Seiichiro Nanri, Eiko Ban, Mikako Inokuchi, Tetsuya Tanaka, Mitsuaki Tokumura, Keiko Kimura, Norio Sugaya

研究成果: Review article査読

21 被引用数 (Scopus)

抄録

Background. The objective of this retrospective descriptive study was to determine whether the universal influenza vaccination for schoolchildren was effective in controlling influenza outbreaks in a school. A universal vaccination program for schoolchildren was started in Japan in the 1960s, but the government abandoned the program in 1994 because of lack of evidence that the program was effective in preventing influenza in schoolchildren. Methods. Influenza vaccine coverage rates, total numbers of class cancellation days, and absentee rates were reviewed in a single elementary school during the 24-year period during 1984-2007. Results. The mean number of class cancellation days and the mean absentee rate in the compulsory vaccination period (1984-1987; mean vaccine coverage rate, 96.5%) were 1.3 days and 2.5%, respectively, and they increased to 8.3 days and 3.2% during the quasi-compulsory vaccination period (1988-1994; vaccine coverage, 66.4%). In the no-vaccination period (1995-1999; vaccine coverage, 2.4%), they were 20.5 days and 4.3%, respectively, and in the voluntary vaccination period (2000-2007; vaccine coverage, 38.9-78.6%), they were 7.0-9.3 days and 3.8%-3.9%. When minor epidemics were excluded, there was a significant inverse correlation between the vaccine coverage rates and both the number of class cancellation days and absentee rates. Conclusions .The universal influenza vaccination for schoolchildren was effective in reducing the number of class cancellation days and absenteeism in the school.

本文言語English
ページ(範囲)130-136
ページ数7
ジャーナルClinical Infectious Diseases
53
2
DOI
出版ステータスPublished - 2011 7 15

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases

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