When the flu strikes, one of the biggest concerns is how long you might be contagious. Knowing this can help protect your family, friends, and coworkers from catching the virus. This guide from ...
The U.S. is in the thick of flu season, with many states reporting "moderate to very high activity" of influenza-like illness, according to the CDC. With influenza A (H3N2), or subclade K, making up a ...
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