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COVID and influenza are at peak circulation in winter, with several million people in Australia getting ill from these respiratory viruses each ...

A basic review of the anatomy, physiology and personal protective equipment related to the respiratory system.

Should people in South Carolina wear masks again in the face of rising COVID and flu cases? Here’s what a SC health officials says about it.

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Students, staff at some schools now are required to wear masks as COVID-19, and respiratory viruses RSV and influenza spread in the U.S.

It’s almost as if those pesky cold and flu germs whirl in with the first blast of winter weather. Yet germs are present year-round — just think back to your last summer cold.

And as we head into winter, with rising rates of multiple respiratory viruses, including flu, RSV, and new coronavirus variants, masks could help all Americans to avoid getting sick.

A version of this article appears in print on Sept. 8, 2022, Section A, Page 18 of the New York edition with the headline: Masks Remain at Head Start, Despite C.D.C. Guidance.