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natural immunity

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    NEJM study - natural immunity to SARS2 virtually eliminates chances of reinfection or disease if reinfected

    Link to study “Of 1304 identified reinfections, 413 (31.7%) were caused by the B.1.351 variant, 57 (4.4%) by the B.1.1.7 variant, 213 (16.3%) by “wild-type” virus, and 621 (47.6%) were of unknown status (Section S1 in the Supplementary Appendix). For reinfected persons, the median time between...