Why Are Covid-19 Cases Dropping?

NBC News' Dr. John Torres explains why Covid-19 cases are dropping and what we can expect of the virus in the winter months. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and ...

113,562 views  •  2021/10/30

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