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1 déc. 1968 - Hong Kong Flu

Description:

1968-1969. The Hong Kong flu was found to have a new haemagglutinin, H3. It may have infected about a quarter of the world population, the final death toll being around half to one million.

Ajouté au bande de temps:

Date:

1 déc. 1968
Maintenaint
~ Il y a 56 ans