Question

why at the time of swine flu epidemic,everyone was weraring a mask​

Answer 1

Doctors believed that masks could help prevent “spray infections,” according to historian John M. Barry in his book, “The Great Influenza: The Story of the Deadliest Pandemic in History.” Enforced by local health officials, the facial coverings grew routine.

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Answer 2

Answer:

Doctors believed that masks could help prevent “spray infections,” according to historian John M. Barry in his book, “The Great Influenza: The Story of the Deadliest Pandemic in History.” Enforced by local health officials, the facial coverings grew routine.

Explanation:

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