Rapid spread of severe bacterial infection in Japan
A Worrying Epidemic
Japan is seeing a worrying surge in cases linked to streptococcal toxic shock syndrome (SSTS). These cases, caused by group A streptococci, are increasing and the toll has already reached 422 since the start of the year, while it had reached 941 over the whole of the previous year. With a mortality rate exceeding 30%, this alarming situation concerns many regions of the country which are on alert.
A Particularly Virulent Strain
Japanese health authorities reveal the presence for the first time on their territory of a strain of streptococcus A from the M1UK group, originating from the United Kingdom, known for its high contagiousness and increased virulence.
Destructive Effects
This insidious pathogen, sometimes called “flesh-eating bacteria,” can be carried asymptomatically. However, in certain individuals, it causes severe conditions including necrotizing fasciitis as well as multiple organ failures. Complications may include acute renal failure, acute respiratory distress syndrome, and clotting disorders leading to hemorrhage and thrombosis. The disease progresses so quickly that it can be fatal in less than 48 hours.
Consequences and Survival
Survivors of SCTS often suffer considerable damage. Some testimonies relate terrifying experiences, such as that of a man who developed sepsis following simple leg pain after a sporting activity, resulting in an amputation and a stay in intensive care.
Transmission and Uncertainties
Contagion of group A streptococci could occur through respiratory droplets. However, there are cases where the route of entry of the bacteria into the body remains undetermined. Mucous membranes or open wounds are potential routes. This uncertainty poses a challenge to fully understanding the mechanisms of spread of this infection.
Vigilance is required, and a precise understanding of modes of transmission could prove crucial to containing the epidemic. It is essential to maintain reinforced hygiene measures, particularly in the relaxed post-pandemic context, to slow the spread of this serious bacterial attack.
