Public health and clinical laboratories reported 2,038 flu cases during the season from Sept. 27, 2020, to April 24, 2021, according to the Centers for Disease Control and Prevention. The agency estimated about 38 million people were sick with the flu during the 2019-2020 season.
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“Normally and unfortunately, we have a wealth of data to base the next year’s flu vaccines on,” Swartzberg said. “But we don’t have a lot of that this year.”
