Abstract:COVID-19 was protective against reinfection during a second outbreak of This study was not included in the 2021 systematic review study above. Patients were nursing/care home staff (n5106, no further demographics presented) and residents (n5103, median age 84 years old, about two-thirds female) from two London nursing/ care homes. Previous infection was confirmed with either RT-PCR or antibody tests. The primary outcome was infection with COVID-19 during the second outbreak, determined by a positive RT-PCR te… Show more
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