Molecular virology and the epidemiology of influenza.
D000956:Antigens, Viral / Q000235:genetics; D004196:Disease Outbreaks / Q000453:epidemiology; D005787:Gene Frequency; D014644:Genetic Variation; D006801:Humans; D009980:Influenza A virus / Q000235:genetics* / Q000276:immunology; D007252:Influenza Vaccines / Q000276:immunology; D007251:Influenza, Human / Q000453:epidemiology* / Q000276:immunology
D000956:Antigens, Viral; D007252:Influenza Vaccines