Paul Sax is an infectious-disease physician and professor at Harvard Medical School. Even so, when Sax’s kids asked him whether they should get the updated COVID...
We know how this ends: The coronavirus becomes endemic, and we live with it forever. But what we don’t know—and what the U.S. seems to have...
Immune cells can learn the vagaries of a particular infectious disease in two main ways. The first is bona fide infection, and it’s a lot like...
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