Dec. 8, 2021, 1:22 p.m.
(NBC News) Even as antibody levels wane against the variant, the immune system may still be primed by vaccines or from previous infections to “remember” the virus.
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Dec. 8, 2021, 1:22 p.m.
(NBC News) Even as antibody levels wane against the variant, the immune system may still be primed by vaccines or from previous infections to “remember” the virus.
Login to grade this article.