On September 1, 2022, the Moderna and Pfizer–BioNTech bivalent vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) containing equal amounts of spike messenger RNA from the ...
People can still get COVID and test positive after a booster shot, but they will likely have mild or no symptoms. However, the vaccine itself does not cause a positive test. The vaccine does not ...
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