Updated op-ed Brownstone on natural immunity, with 150 Plus Research Studies and pieces of evidence Affirming Naturally Acquired Immunity to Covid-19: Documented, Linked, and Quoted
by Paul Alexander
I have added, reference 155 now by Chemaitelly et al., 2022 (Qatar) who found 'protection against severe reinfection remains very strong, with no evidence for waning, irrespective of variant'
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150 Plus Research Studies Affirm Naturally Acquired Immunity to Covid-19: Documented, Linked, and Quoted