Centers for Disease Control and Prevention Director Robert Redfield testified before Congress on Wednesday and emphasized to lawmakers that face masks are the "most important, powerful public health tool we have," urging "all Americans" to "embrace" them because doing so could bring the COVID-19 pandemic "under control." "I might even go so far as to say that this face mask is more guaranteed to protect me against COVID than when I take a COVID vaccine," Redfield said. After Trump earlier this week claimed a COVID-19 vaccine could be ready in just three or four weeks, Redfield predicted that one could be "initially" available in "very limited supply" in November or December. But in terms of when a vaccine could be "generally available to the American public," Redfield predicted "late second quarter, third quarter 2021."

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