MALDI-TOF MS in Anaerobiospirillum succiniciproducens bacteremia: A report of 4 cases in different hosts

Anaerobiospirillum succiniciproducens is known as an uncommon cause of diarrhea and bacteremia in humans, usually in immunocompromised hosts. We report four cases of A. succiniciproducens bloodstream infection in different hosts, including a previously healthy man. We describe clinical features, antibiotics susceptibility profile, treatment and outcomes. Strains were identified by 16S rRNA gene sequences which contributed to the extension of our MALDI-TOF MS database. •We present four cases of A. succiniciproducens bacteremia in different hosts, including a healthy man.•The isolates were all resistant to clindamycin and susceptible to erythromycin and azithromycin..•MALDI-TOF MS allowed us to identify it directly from the positive blood culture bottle.