Association between duration of SARS-CoV-2 positivity and long COVID.
Chiara PozziRiccardo SartiRiccardo LeviMaximiliano MolluraElena AzzoliniRiccardo BarbieriAlberto MantovaniMaria RescignoPublished in: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America (2023)
In an observational study, we analyzed 1,293 healthcare workers previously infected with SARS-CoV-2, of which 34.1% developed long COVID. Using a multivariate logistic regression model, we demonstrate that the likelihood of developing long COVID in infected individuals rises with the increasing of duration of infection and that three doses of the BNT162b2 vaccine are protective, even during the Omicron wave.