[Considerations on the influenzal pandemic due to the A2 Hong Kong virus variant].
D004196:Disease Outbreaks; D005455:Fluorescent Antibody Technique; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000276:immunology; D007558:Italy; D009975:Orthomyxoviridae / Q000302:isolation & purification*
Considerazioni sulla pandemia influenzale da virus A2 variante Hong Kong.