- - Outbreak of the late 1950s
- - Viral epidemic that originated in China: 2 wds.
- - H2N2 pandemic of 1956-58, familiarly
- - Eastern strain of the H2N2 virus
- - Cause of global panic in 1957
- - influenza strain
- - Malady caused by H2N2
- - Israeli reportedly went on a plane with serious complaint
- - Outbreak caused by the H2N2 virus
- - Unwanted import from the East?
- - Unwanted visitor from the East
- - Eastern blight
- - Dreaded bug
- - Annual vaccine target
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