Fast Five Quiz: Risk Factors for SARS-CoV-2 Reinfection

Enrico Brunetti, MD


April 14, 2023

Data from an Italian study investigating risk factors for reinfections demonstrated that regardless of the prevalent virus variant, being unvaccinated was the most relevant risk factor for reinfection. Even in individuals whose occupation places them at risk for reinfection, such as healthcare workers, vaccination provides greater protection against both symptomatic and asymptomatic reinfection compared with not being vaccinated. In addition, vaccination may provide added protection for individuals previously infected with SARS-CoV-2. A study from Qatar showed that immunization after primary infection provided an 85% reduction in breakthrough reinfection.

Learn more about COVID-19 risk factors.


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