Pfizer and Moderna shots are less effective in people with weak immune systems, a study finds. ~ NEWS HEADLINES

NYT Pfizer and Moderna shots are less effective in people with weak immune systems, a study finds.

Pfizer and Moderna shots are less effective in people with weak immune systems, a study finds.

Dipraj Sarkar 2:04 PM

By BY BENJAMIN MUELLER from NYT Health https://ift.tt/3w7opZ2

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