Melioidosis : Réapparition d’une infection rare aux États-Unis

Atlanta – 27 Novembre 2024 – Deux cas récents de méloïdose, une infection bactérienne rare et potentiellement mortelle, ont été identifiés aux États-Unis en 2024 chez des individus sans antécédents de voyage dans des zones endémiques. Cette réapparition, couplée à des cas remontant à 1989, suggère une possible source environnementale persistante du pathogène Burkholderia pseudomallei dans le sol américain.Un patient a même connu une rechute en novembre, soulignant la complexité de cette infection. Découvrez les implications de cette découverte et les recherches en cours pour comprendre et prévenir la propagation de la méloïdose.

Summary of the Text:

This text discusses a rare and dangerous bacterial infection called melioidosis, caused by Burkholderia pseudomallei. Here’s a breakdown of the key points:

Melioidosis is difficult too diagnose and treat: It’s naturally resistant to some antibiotics and can manifest in various ways, from localized infections to life-threatening systemic infections. untreated, it has a high mortality rate (up to 90%), but prompt and appropriate treatment can reduce this to below 40%.
Recent US Cases are Unusual: In 2024, two men in the US contracted melioidosis despite having no recent travel history to areas where the bacteria is common. This is concerning as typically only travelers contract the disease. Link to Past Cases: Genetic sequencing revealed a connection to two cases from the 1980s, one of which was fatal. The 1989 patient was a Vietnam veteran. Possible Environmental Source: The timing of the 1989 case, shortly after Hurricane Hugo hit Georgia, raises suspicion that the bacteria may have been stirred up from the soil by the storm. This suggests a potential environmental source within the US.
* One 2024 patient had a relapse: One of the 2024 patients experienced a relapse in november but ultimately recovered with further treatment.

In essence, the text highlights a potential re-emergence of a rare and dangerous infection within the US, possibly linked to environmental factors and raising questions about long-term bacterial persistence in the soil.