Health experts are warning that the worst of the coronavirus is not over. "The fall could be incredibly gruesome," said Yale School of Medicine epidemiologist Gregg Gonsalves. COVID-19 is still spreading rapidly, and coupled with colder weather that will push people indoors and coincide with flu season, it could make for another round of deadlier months. Gonsalves said the summer months were a key time to tamp down on outbreaks, but said the Trump administration largely squandered the opportunity. Centers for Disease Control and Prevention Director Robert Redfield, meanwhile, says "this could be the worst fall from a public health perspective we've ever had." He urged Americans to wear masks and socially distance. On Wednesday, the U.S. reported 1,493 coronavirus deaths, the highest single-day total since mid-May.

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