When does the flu peak?

Although seasonal flu viruses are found all year round in the United States, the “flu season” is when these viruses most frequently spread, according to the CDC.  The actual start and end dates of flu seasons might vary, although October is when activity often peaks. Flu activity usually peaks between December and February, though it can persist into May. However, as mentioned earlier, the timing and duration of flu activity have become less predictable since the COVID epidemic began.

 

 

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