Rare and Rapidly Spreading Bacterial Infection Alert in Japan

If you’re planning a trip to Japan anytime soon, you may want to be aware of a growing concern regarding the spread of Streptococcal toxic shock syndrome (STSS), also known as the “flesh-eating disease”. The number of reported cases has recently skyrocketed, with Tokyo alone recording 88 cases and the entire country reporting a total of 517 cases. These figures have already surpassed 50% of the total recorded cases in 2023, according to Japan Times.

STSS is caused by the bacteria Streptococcus pyogenes, and it can lead to tissue necrosis, with a high mortality rate of around 30%. The increase in STSS cases is believed to be associated with the emergence of the M1UK variant, with confirmed cases gradually rising since mid-November 2023.

While the National Institute of Infectious Diseases in Japan typically reports that around 90% of confirmed STSS cases occur in individuals aged 40 and above in Tokyo, there has been a significant increase in cases among those aged 40 and below in 2023.

In response to this alarming trend, Japanese authorities have advised citizens to seek immediate medical attention if they experience symptoms such as pain, swelling of the limbs, or fever – typical signs of this infectious disease.

Streptococcus pyogenes can be transmitted through respiratory droplets and direct contact. However, infection can also occur through wounds on the hands or feet. Health officials are urging everyone to adhere to basic preventive measures such as frequent handwashing and proper wound care.

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