UK: According to a study done by Danish researchers, the BA.2 sub-variant of Omicron is 1.5 times more transmissible than the original Omicron strain. According to the World Health Organization, Omicron, also known as B.1.1.529, contains three primary substrains: BA.1, BA.2, and BA.3 (WHO).
According to Newsweek, researchers at Denmark's Statens Serum Institut (SSI) discovered that BA.2 appears to be 1.5 times more contagious than BA.1.
"Of course, we're watching it closely," Tyra Grove Krause, an infection epidemiology expert at SSI, was cited as saying. "If BA.2 is more contagious, it might indicate that the wave of infections will be bigger and last longer into February than prior forecasts." The subvariant BA.2, called "Stealth Omicron," is spreading over the world, with cases reported to a global variant tracking database from at least 55 nations, including India.
According to the database, over half of the US states have confirmed the presence of BA.2, with at least 127 cases reported as of Friday.
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