acinetobacter cumulans acinetobacter cumulans acinetobacter cumulans is a bacterium from the genus of acinetobacter which has been isolated from hospital sewage from china. acinetobacter cumulans is resistant against clinically important antibiotics. acinetobacter cumulans scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: moraxellaceae genus: acinetobacter species: a. cumulans binomial name acinetobacter cumulansqin et al. 2019 type strain wchac060092