Chances of reinfection from Omicron mutations evaluated — Analysis
Danish study says it’s possible to catch the Omicron BA.2 subvariant after the “original” BA.1, but it’s uncommon
According to Danish researchers, it’s rare for an individual to be infected after they have had Omicron. However, the study was not peer reviewed.
The study, led by Denmark’s top infectious disease authority, the Statens Serum Institut (SSI), identified 1,739 cases of reinfection between November 21, 2021 and February 11. Positive reinfections were confirmed within 20 to 60 days of the initial infection.
More than 1.8 Million infections in Denmark were recorded during this time.
Using a smaller sample group, the researchers found only 47 instances of BA.2 infection following an initial infection with the “Original” Omicron BA.1.
“We provide evidence that Omicron BA.2 reinfections are rare but can occur relatively shortly after a BA.1 infection,”The study’s authors stated this.
Researchers found that people who were reinfected had a tendency to be unvaccinated and young. According to the researchers, mild diseases were not caused by this case, and there was no death or hospitalization.
The second infection was less virally active than the first, which suggests that there may have been some immunity from BA.1 infections.
Omicron’s BA.2 variant quickly outperformed the Omicron version of Covid-19 from Denmark. It has spread to other parts of the globe, including the UK.
BA.2 accounts for over 88% of all cases in Denmark, and is distinguished from the BA.1 variant with up to 40 mutations.
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