Occurrence of <i>Stenotrophomonas</i> spp. in the Water Environment and Characteristics of Isolates

Stenotrophomonas maltophilia has been increasingly recognized as an opportunistic pathogen that causes pneumonia and bloodstream infections. In spite of its clinical importance, literatures on the quantitative monitoring in water environment are not available. this study, spp. contained treated wastewater, pond river were quantified by a selective agar medium. The numbers blue colonies VIA plates ranges 1.9 to 24.7 CFU/mL for wastewater 0.6 15.8 other environmental samples. species 88 isolates with consisted (85%) others (15%) based 16S rRNA sequencing genus-specific PCR targeting 23S rRNA. number samples was roughly 1/50 level coliform group bacteria. Most (> 97%) susceptible both sulfamethoxazole/trimethoprim levofloxacin.