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Flu season 2021: What to know
Fox News
As temperatures cool and students return to classrooms amidst the ongoing COVID-19 pandemic, flu season has arrived once again.
Flu cases have dropped to historically low levels during the pandemic, with coronavirus restrictions blocking other respiratory viruses.
However, with schools and businesses reopened, there is no telling how bad a flu season the U.S. can expect this winter and officials are worried because a different respiratory virus – RSV – came back last summer.
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