Hong Kong Flu (dec 31, 1968 – dec 31, 1969)
Description:
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.
Added to timeline:
Date:
dec 31, 1968
dec 31, 1969
~ 12 months