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Hong Kong Flu (31 dic 1968 anni – 31 dic 1969 anni)

Descrizione:

An influenza outbreak in Hong Kong between 1968 and 1969. It was caused by an H3N2 strain of the influenza A virus, descended from H2N2 through antigenic shift.

Aggiunto al nastro di tempo:

Data:

31 dic 1968 anni
31 dic 1969 anni
~ 12 months