The Tokyo Metropolitan Government has revealed that a new mutant virus called "BA.5" has been confirmed in one of the strains of the new coronavirus Omicron strain.



According to the Ministry of Health, Labor and Welfare, this is the first confirmation in Japan except for quarantine.

According to the city, an analysis conducted by the "Health and Safety Research Center" of the city confirmed one new mutant virus called "BA.5" in one of the strains of the Omicron strain.



"BA.5" is a virus that is being replaced in South Africa, and according to the Ministry of Health, Labor and Welfare, this is the first time that it has been confirmed in Japan except for quarantine.



The infected man in his 70s is believed to have been infected in the city, with no experience of traveling abroad or contact with anyone who has traveled abroad.



Also, the symptoms were mild.



On the other hand, one virus of the Omicron strain "BA.2.12.1", which is increasing in infection in the United States, was also confirmed for the first time in Tokyo.



A man in his 50s who was infected with this virus had no history of traveling abroad and was considered to be a community-acquired infection, and his symptoms were mild.



According to the city, the severity of infection has not been clarified for any of the mutant viruses, but the infectivity may be higher than that of the previous Omicron strains, so we are paying close attention to the outbreak trend. I'm going to go.

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