A new case-control study of Brazilian healthcare workers published by the Infection Control & Hospital Epidemiology journal suggests as many as 27% developed Long COVID after infection, and multiple infections raised the risk.
The study is based on confirmed symptomatic COVID-19 health workers who worked in a Brazilian healthcare system in Sao Paulo from March 1, 2020, to July 15, 2022. Symptoms persisting longer than 4 weeks after acute infection were assessed during 180 days of follow-up.
Study finds 27% rate of long COVID in infected health workers | CIDRAP (umn.edu)