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This fall, COVID-19 and the flu will circulate in the United States at the same time, and what will happen then is a bit of a wild card. Wearing masks, washing hands, and keeping six feet away from other people to avoid COVID-19 are measures you can take that will also help protect you from flu. But some will still get the flu, and COVID-19 is still with us. What if both viruses surge and then mingle in the emergency room, straining health care resources as doctors try to care for everyone?

Doctors and public health