预计今年秋天COVID-19病例将激增。 这就是为什么学校面具可能会有所帮助。
September 1, 2021
Michael LeVasseur, PhD, an assistant teaching professor in the Dornsife School of Public Health, was quoted in a Sept. 1 Philadelphia Inquirer article about why wearing masks in schools may help prevent the spread of COVID-19 this fall.
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