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Dr. John Campbell

Dr. John Campbell

Can I catch omicron twice?

Dr. John Campbell · Nov 14, 2026 · 7:45

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Yes you can but the chance is only 1 in 38,279 infectionsUploaded 25-02-22Occurrence and significance of Omicron BA.1 infection followed by BA.2 reinfectionDepartment of Virus and Microbiological Special Diagnostics, Statens Serum Institut, Copenhagen, Denmark https://bit.ly/3s5QYWtOmicron carries numerous mutations in key regions and is associated with increased transmissibility and immune escape. Omicron BA.1 and BA.2Whether BA.2 specifically can escape the natural immunity acquired shortly after a BA.1 infectionN = 1,8 million infectionsNovember 22, 2021, until February 11, 2022Individuals with two positive samples, more than 20 and less than 60 days apartFrom a total of 187 reinfection cases, we identified 47 instances of BA.2 reinfections shortly after a BA.1 infection, (So from 1,800,000 million, 47 did and 1,799.853 didn’t) mostly in young unvaccinated individuals with mild disease not resulting in hospitalization or death.In conclusion, we provide evidence that Omicron BA.2 reinfections do occur shortly after BA.1 infections but are rare. Learn more about your ad choices. Visit megaphone.fm/adchoices
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