Protective Effect of Previous SARS-CoV-2 Infection against Omicron BA.4 and BA.5 Subvariants. Altarawneh HN, Chemaitelly H, Ayoub HH, Hasan MR, et al. N Engl J Med 2022 Oct 5. doi: 10.1056/NEJMc2209306.

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Altarawneh HN, Chemaitelly H, Ayoub HH, Hasan MR, et al. Protective Effect of Previous SARS-CoV-2 Infection against Omicron BA.4 and BA.5 Subvariants. N Engl J Med 2022 Oct 5. doi: 10.1056/NEJMc2209306.
PMID: 36198139