During the 1972–1973 flu season in the Northern Hemisphere, a new variant of influenza, dubbed the 'London flu' by the press in the United States, was responsible for epidemics in many countries. 'London flu' was caused by a variant of influenza A/H3N2 that was first isolated in India in mid-1971 but only identified as a distinct strain in England in January, 1972.
During the 1972–1973 flu season in the Northern Hemisphere, a new variant of influenza, dubbed the 'London flu' by the press in the United States, was responsible for epidemics in many countries. 'London flu' was caused by a variant of influenza A/H3N2 that was first isolated in India in mid-1971 but only identified as a distinct strain in England in January, 1972.
Source: Wikipedia "London flu" · CC BY-SA 4.0
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