Dangerous bacterial infection is spreading rapidly in Japan – authorities are puzzling. More than 400 streptococcal toxic shock syndrome (STSS) infections were detected in Japan in 2024 alone.

Tissue necrosis can form within 48 hours and multiorgan failure can lead to death. In the first two months of this year alone, 378 cases have been confirmed almost across the country. The number of cases this year is expected to surpass last year's record numbers. In 2023, 941 cases of STSS were reported.