"Unexplained Surge: Japan Grapples With Deadly Infection Outbreak"
Japan is experiencing a surge in cases of streptococcal toxic shock syndrome (STSS) with a 30% fatality rate, primarily affecting those under 50. The increase is believed to be linked to the relaxation of COVID-19 measures, leading to decreased immunity to the bacteria causing STSS. Health officials are urging the public to maintain good hygiene practices, while experts suggest that the rise in severe cases may be due to the "old hygiene hypothesis." The presence of a particular strain prevalent in the UK since 2019 has also been noted, but its exact role in the increase of STSS cases remains unclear and requires further investigation.