A study carried out by scientists from the universities of Tokyo, Kumamoto, Hokkaido and Kyoto pointed out that the BA.2 subvariant of Ômicron may be more aggressive than the original, as it affects the lungs more.
The omicron variant was known to be more transmissible, but concentrated in the upper respiratory tract, such as the nose and mouth. The work, which has not yet been peer-reviewed, found that the new subvariant reached the lungs of mice “significantly more” than the original variant.
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“Our multiscale investigations suggest that the overall health risk of BA.2 is potentially greater than that of BA.1,” the researchers wrote. The study also pointed out that whoever took the original omicron could be infected with the subvariant.
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