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Podcast: The Bridge with Peter Mansbridge
Episode: Will We Need A Fourth Vaccine Soon?
Description: It's our regular weekly (day later than usual because of yesterday's holiday) check-in on Covid. But first some thoughts on the Ukraine story, and the trucker's story and the importance of words. Epidemiologist Dr. Zain Chagla joins us with his take on yet another vaccine shot, and also how concerned we should be about the variant BA2