A Vaccine Breakthrough
It’s a dark time in the struggle with the coronavirus, particularly in the United States, where infections and hospitalizations have surged.
But amid the gloom comes some light: A trial by the drug maker Pfizer has returned preliminary results suggesting that its vaccine is 90 percent effective in preventing Covid-19. With the virus raging, how strong is this new ray of hope? Guest: Carl Zimmer,a science writer and author of the “Matter” column for The New York Times. Background reading:
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