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Flu vs. COVID-19: How the 2 Illnesses Compare, According to Experts

Though COVID-19 and the flu can cause many of the same symptoms, and both can lead to cases of pneumonia, respiratory failure, and even acute respiratory distress syndrome (ARDS), COVID-19 can affect the body’s other organ systems more than the flu, James H. Conway, MD, FAAP, a pediatric infectious disease specialist and associate director for health sciences at the Global Health Institute of UW-Madison, tells Health.