Trial of influenza HA vaccination for healthcare workers in consecutive years.
We investigated the trial of the influenza HA vaccination for healthcare workers in 2 consecutive years at Nihon University Itabashi Hospital. The vaccination rate increased significantly (P<0.01) from the first season to the second season. The number of missed working days in the vaccinated group was significantly lower (P<0.01) than that in the unvaccinated group in a mild-pandemic year. Furthermore, the relative risk of infection was 0.53 and the effectiveness rate of the vaccine was 46.8%. Absenteeism and influenza infection rates were also significantly lower in the vaccinated group. This study may support the possibility of influenza vaccination for healthcare workers to prevent the outbreak of influenza in hospitals.
Fujita
Yukihiko
Y
Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, Japan. yfujita@med.nihon-u.ac.jp
Okada
Tsuyoshi
T
Mugishima
Hideo
H
Kumasaka
Kazunari
K
Sawa
Mitsuru
M
Tachihara
Sachiko
S
D000041:Absenteeism; D000328:Adult; D005260:Female; D006282:Health Personnel; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage* / Q000276:immunology*; D007251:Influenza, Human / Q000453:epidemiology* / Q000276:immunology / Q000473:pathology / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D011795:Surveys and Questionnaires; D055815:Young Adult
D007252:Influenza Vaccines