According to a new study led by Katrin Finderup Nielsen at Denmark’s Statens Serum Institute, individuals who have already been infected with the COVID-19 disease benefit from vaccination, with about 60% to 94% protection against reinfection. is obtained, depending on the variance.
The study has been reported in the open-access journal PLOS Medicine, reports ANI.
It is believed that vaccination has been one of the best tools available to prevent the spread of COVID-19 during the pandemic. Infected people are known to develop long-lasting natural immunity, however, Finderup Nielsen and his team wanted to know whether these individuals still benefit from COVID-19 vaccination.
Research team analyzed covid-19 infection ANI reported that vaccination data from Danish registers that included people living in Denmark who tested positive or were vaccinated between January 2020 and January 2022.
According to the study, the data included more than 200,000 people who tested positive for SARS-CoV-2 during each of the Alpha, Delta and Omicron waves.
After analyzing these people, the researchers said that for those with previous infection, vaccination offered up to 71% protection against re-infection during the alpha period, 94% during the delta period and 60% during the omicron period. Of which there was protection up to nine. month, as per ANI report.
However, the authors also pointed out that the current study was too small to determine whether the COVID-19 vaccine offers protection against serious outcomes such as death and hospitalization. Therefore, future studies with longer follow-up times will be important to answer this question, he said.
Finderup Nielsen said, “In our study, we found a significant vaccine effectiveness against SARS-CoV-2 reinfection, and this shows the importance of vaccinating even those who may be protected by natural immunity.” Is.”
(With ANI inputs)
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