https://www.businessinsider.in/science/health/news/us-data-reveals-most-contagious-omicron-subvariants-are-responsible-for-80-percent-of-covid-19-infections/articleshow/92843398.cms
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7/13/22 at 5:17am
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Business Insider India
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Business Insider India
The newer and most contagious Omicron subvariants, known as BA.4 and BA.5, now make up more than 80 percent of Covid-19 infections in the US, according to
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