Comamonas

Gram-negative, aerobic, nonpigmented, rod-shaped bacteria, which are motile by means of at least one polar tuft of flagella and have a nonfermentative chemoorganotrophic metabolism. They are quite ubiquitous in the environment and have been isolated from soil, mud and water. Comamonas strains have also been isolated from denitrifying activated sludge as well as from various clinical samples and from the hospital environment, but they are not seen as pathogenic to healthy humans.

Comamonas is a genus of bacteria in the phylum Pseudomonadota. Like all Pseudomonadota, they are Gram-negative bacteria. Comamonas species are aerobic organisms and motile using bipolar or polar tufts of one to five flagella. Comamonas testosteroni and Comamonas kerstersii have been found to cause infections in people.