Individuals can get contaminated twice with the Omicron variant of COVID-19 – however solely in uncommon instances, in line with a brand new Danish examine.
Researchers on the Statens Serum Institut, Denmark’s prime infectious-disease authority, discovered that a small variety of folks contaminated with Omicron’s BA.1 subvariant can contract its BA.2 pressure shortly afterward.
“We offer proof that Omicron BA.2 reinfections are uncommon however can happen comparatively shortly after a BA.1 an infection,” the authors stated.
The examine, which isn't but peer-reviewed, recognized 1,739 instances between Nov. 21 and Feb. 11 of sufferers who examined constructive twice between 20 and 60 days aside.
In that interval, Denmark recorded greater than 1.8 million coronavirus instances.
Researchers nonetheless detected decrease ranges of “virus materials” through the second an infection, suggesting some immunity was developed from the primary infections.
They pressured that the reinfections are uncommon and principally affected younger, unvaccinated folks and solely induced delicate illness, none of which led to hospitalizations or deaths.
In Denmark, BA.2 has dethroned the “unique” BA.1 variant, the most typical worldwide, however it had remained unclear whether or not an individual may get contaminated by each variants, which differ by as much as 40 mutations.
Whereas BA.2 accounts for greater than 88 % of instances in Denmark, the subvariant has simply began to take maintain in the UK, South Africa and Norway.
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