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Dr. Bollinger: We're in a better place with Covid, but we're not out of the woods yet

Dr. Robert Bollinger, professor of infectious diseases at Johns Hopkins, joins 'Closing Bell' to discuss why Europe is seeing a resurgence of Covid cases, the U.S.'s vaccination efforts, and whether he sees any evidence of the AstraZeneca vaccine causing blood clots in patients.
02:13
Mon, Mar 15 20217:42 PM EDT