title: [Recurrent outbreaks of influenza in a kibbutz in the light of antigenic variations in the virus].
mesh_terms: D000367:Age Factors; D000956:Antigens, Viral / Q000302:isolation & purification; D004196:Disease Outbreaks / Q000209:etiology*; D014644:Genetic Variation; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D007557:Israel; D009975:Orthomyxoviridae / Q000276:immunology
chemical_list: D000956:Antigens, Viral