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Is it flu, COVID-19, allergies, or a cold? – Corridor News
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Jan 14, · “Both influenza and COVID can be spread to other people before individuals develop symptoms,” notes Dr. Aubree Gordon, an infectious disease expert at the University of Michigan. COVID-19 symptoms can take longer than flu symptoms to develop, she explains. Someone with flu usually has symptoms 1 to 4 days after being infected.
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