Studies on epidemics of influenza--relationship between the closure of some or whole classes of the school and the time or rate of inoculation with influenza vaccine.
D000293:Adolescent; D000914:Antibodies, Viral / Q000032:analysis; D002648:Child; D004196:Disease Outbreaks / Q000453:epidemiology*; D006801:Humans; D007252:Influenza Vaccines / Q000276:immunology*; D007251:Influenza, Human / Q000453:epidemiology*; D012574:Schools; D013997:Time Factors; D014041:Tokyo; D014611:Vaccination
D000914:Antibodies, Viral; D007252:Influenza Vaccines