Prior waves tended to have a symmetrical shape of cases going up and down, said Dr. Jessica Justman, associate professor of medicine in epidemiology at Columbia University’s Mailman School of Public Health. “Since cases rose very quickly this omicron wave, there had been the expectation that it would come back down with a similar shape.” Should opponents of the mandate win their legal challenge, it could stretch that downward curve a little,” Justman said.

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