Symptomatic SARS-COV-2 reinfection: healthcare workers and immunosuppressed individuals at high risk

• DOI: 10.1186/s12879-021-06643-1
• Publication Date: 2021-09-06T15:03:17Z
• Authors: Efrén Murillo-Zamora; Xóchitl Trujillo; Miguel Huerta; Mónica Ríos-Silva; Felipe Aguilar-So...; Oliver Mendoza-Cano
• Keywords: Medical microbiology; Tropical Medicine; Parasitology

Abstract Background Knowledge regarding factors predicting the SARS-COV-2 reinfection risk is scarce and it has major implications in public health policies. We aimed to identify associated with of symptomatic reinfection. Methods conducted a nationwide retrospective cohort study 99,993 confirmed cases COVID-19 were analyzed. Results The overall (28 or more elapsed days between both episodes onset) was 0.21% (incidence density, 2.5 reinfections per 100,000 person-days) older subjects those mild primary disease at reduced event. Healthcare workers immunosuppressed renal patients had greater Conclusions If replicated other populations, these results may be useful prioritize efforts focusing on reduction spread related burden.