Japan Studies: BA.5 strains may be more pathogenic than early Omikon mutant strains

The research team led by Professor Sato, a professor at the Institute of Medical Sciences at the University of Tokyo, released research results on the Internet (Japan NHK TV)

Overseas Network, July 14th. According to the Japanese NHK TV station on the 14th, a research team composed of institutions such as the University of Tokyo, Japan recently announced the results of animal experiments on Omikon BA.5 subtype strains. The results show that BA The strain may have a stronger pathogenicity than the early Omiroko mutant strains, which is more likely to cause inflammation.

The research team produced viruses with the characteristics of Omikon BA.2 and BA.5, respectively, allowing the cultivation of cells to infected viruses and observing its growth. Studies have found that after 24 hours, the proliferation of BA.5 strains is 34 times that of BA.2 strains. The group also conducted infection experiments on hamsters. The hamster infected with BA.2 strains did not decrease, but the hamster infected with BA.5 strains decreased by about 10%. Essence

The research team stated that this was only the results of the experiment in animals, and the actual symptoms reflected in human beings need to be further observed. (Overseas Network/Wang Shanning Internship Compilation/Fan Xin)

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