Reference:
Cavanaugh, A. M., Spicer, K. B., Thoroughman, D., Glick, C., & Winter, K. (2021). Reduced risk of reinfection with SARS-CoV-2 after COVID-19 vaccination—Kentucky,
May–June 2021. Morbidity and Mortality Weekly Report, 70(32), 1081-1083. https://www.cdc.gov/mmwr/volumes/70/wr/pdfs/mm7032e1-H.pdf
Summary:
A study conducted in Kentucky during May-June 2021 assessed the impact of COVID-19 vaccination on reinfection rates among individuals previously infected with SARS-CoV-2 in 2020. Results indicated that unvaccinated individuals had 2.34 times higher odds of reinfection compared to fully vaccinated individuals. The study, which included 246 case-patients and 492 control participants, suggests that full vaccination offers significant protection against reinfection, supporting CDC recommendations for vaccination irrespective of prior infection history. The research highlights the importance of vaccination in enhancing immunity and mitigating the risk of SARS-CoV-2 reinfection.