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Levels of influenza and other non-COVID-19 respiratory viruses were at historic lows during most of 2020, according to a new report from the Centers for Disease Control and Prevention. There’s still very little flu circulating, but other viruses — including parainfluenza viruses and common human coronaviruses, which cause colds — are having an out-of-season resurgence in 2021.
Between October 2020 and May 2021, levels of the flu in the United States were at their lowest since 1997, the first year there’s flu season data available, the analysis found. There was very little flu reported all over the world, and experts think the protective measures people took against COVID-19 — masking, distancing — suppressed the virus.
The nearly…
