Biden had received a second booster. Here’s why it wasn’t enough to prevent infection.

Health
By BY APOORVA MANDAVILLI from NYT Health https://ift.tt/W2LuH06
via IFTTT Vaccination and Immunization, Coronavirus Omicron Variant, Disease Rates The Omicron variant is evolving in ways that make it better able to evade the body’s immune defenses. But booster shots still help prevent severe illness.

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