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Annals of Internal MedicineThe Incidence of SARS-CoV-2 Reinfection in Persons with Naturally Acquired Immunity with and Without Subsequent Receipt of a Single Dose of BNT162b2 Vaccine

This Annals of Internal Medicine study reports an 82% decreased risk for reinfection for those previously infected and then vaccinated, versus those previously infected but who remained unvaccinated. Reinfection in both groups was relatively rare.