Unvaccinated people who previously had Covid-19 are more than twice as likely to be reinfected than people who were previously infected but got the jab, according to a small study on the likelihood of reinfection.
The research was conducted and published by the US Centers for Disease Control and Prevention (CDC). It assessed data on reinfections during May and June 2021 among hundreds of people in Kentucky who tested positive for Covid-19.
Writing about their findings in an early edition of the Morbidity and Mortality Weekly Report, Dr Alyson Cavanaugh of the CDC and colleagues said: “In this case-control study, being unvaccinated was associated with 2.34 times the odds of reinfection compared with being fully vaccinated.”