Noun
Hong Kong flu (uncountable)
A form of influenza caused by an H3N2 strain of the influenza A virus, descended from H2N2 through antigenic shift, that killed around one million people worldwide during an outbreak in 1968 and 1969.
The Hong Kong flu pandemic of 1968 originated in China. Source: Internet
The H3N2 virus strain, known at the time as the Hong Kong flu, reached America’s shores in September 1968. Source: Internet
Originating in China during the 1960s, the Hong Kong Flu infected 15% of the population, resulting in 50 million deaths. Source: Internet