title: Influenza: notes on its aetio-epidemiology and prevention.
mesh_terms: D000367:Age Factors; D006801:Humans; D007252:Influenza Vaccines / Q000627:therapeutic use; D007251:Influenza, Human / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control
chemical_list: D007252:Influenza Vaccines