October 3, 2022

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Japan’s childhood hepatitis cases of unknown etiology rise to 31



 

Japan’s childhood hepatitis cases of unknown etiology rise to 31.

On May 27th, Japan’s Ministry of Health, Labour and Welfare announced that Japan reported 7 new cases of acute hepatitis of unknown etiology in children, and a total of 31 cases were reported.

 

Japan's childhood hepatitis cases of unknown etiology rise to 31

 

On April 25, Japan reported its first case of acute hepatitis in a child of unknown etiology. On May 20, the number of reported cases rose to 24.

 

According to reports, the Ministry of Health, Labour and Welfare counted the hospitalized cases of children with acute hepatitis of unknown etiology in Japan since October 1, 2021.

The patients were all under the age of 16, and there was no liver transplant. Four of them tested positive for the new coronavirus; of the 22 people who had obtained adenovirus test results, two were positive.

 

Researchers such as Professor Hiroshi Nishiura of Kyoto University in Japan analyzed the association between acute hepatitis of unknown etiology and the new coronavirus and found that in countries with cases of acute hepatitis of unknown etiology in children, there are relatively more people infected with the new coronavirus variant strain Omicron.

The researchers believe that further research is needed to study the relationship between infection with the Omicron strain and acute hepatitis of unknown etiology in children.

 

Recently, many countries around the world have reported an abnormal increase in cases of acute hepatitis of unknown etiology in children.

A correspondence article published in the British medical journal “The Lancet Gastroenterology and Hepatology” in May proposed a hypothesis on the pathogenic mechanism: this hepatitis may be related to the immune activation mediated by the new coronavirus superantigen, and Disease caused by co-infection with adenovirus.

 

 

 

 

Japan’s childhood hepatitis cases of unknown etiology rise to 31

(source:internet, reference only)


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