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url = https://www.npr.org/tags/804916759/covid-19
covid-19 : npr
Scientists are beginning to come up with answers to the question of how long antibodies from an infection can protect you — and what they'll protect you from.
February 4, 2022 • Antibody tests may be coming soon to a pharmacy near you. Here's what the tests reveal — and don't reveal — about you and COVID-19.