Chances of re-infection with COVID-19 are twice as likely if unvaccinated – study



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The study examines the rate of reinfection in both vaccinated and unvaccinated people, focusing on Kentucky residents infected with COVID-19 in 2020 who were subsequently re-infected between May and June 2021.

The case-control study showed that not being vaccinated was associated with 2.34 times the risk of re-infection compared to being fully vaccinated.

Alyson Cavanaugh, the lead author of the study, reported that while most illnesses in 2020 were caused by the original coronavirus strain, the alpha strain was predominant in Kentucky during May and June.

This, she said, suggests that the natural immunity gained from being infected is not as strong as the immunity gained from a vaccine, especially as the virus continues to evolve.

In response to the study, CDC director Dr Rochelle Walensky called on people to get vaccinated, even those who have already been infected in the past.

“Getting the vaccine is the best way to protect yourself and others, especially as the most contagious Delta variant is spreading across the country,” she said.



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