Holtiella tumoricola gen. nov. sp. nov., isolated from a human clinical sample.

The diversity of bacteria associated with biopsy material obtained from patients with colorectal cancer was investigated using culture techniques. A novel bacterium, strain CC70AT, was isolated by diluting a sample of homogenized tissue in anaerobic medium, and then plating to yield a pure culture. Strain CC70AT was a Gram-positive, strictly anaerobic, motile, rod-shaped bacterium. Formate, but not acetate, was a fermentative end-product from growth in peptone-yeast extract and peptone-yeast-glucose broth. The G+C content of DNA from strain CC70AT was 34.9 mol%. 16S rRNA gene sequence analysis revealed that the isolate was part of the phylum Bacillota. The closest described relatives of strain CC70AT were Cellulosilyticum lentocellum (93.3 %) and Cellulosilyticum ruminicola (93.3 and 91.9% sequence similarity across 16S rRNA gene, respectively). According to the data obtained in this work, strain CC70AT represents a novel bacterium belonging to a new genus for which the name Holtiella tumoricola gen. nov., sp. nov. is proposed. The type strain for our described novel species is CC70AT (=DSM 27931T= JCM 30568T).

Prevalence and Epidemiology of Mycoplasma genitalium in a Pacific-Region Military Population.

BACKGROUND: Mycoplasma genitalium is an important emerging sexually transmitted pathogen commonly causing urethritis in men, cervicitis, and pelvic inflammatory disease in women with potential of infertility. Accumulating evidence identifies the prevalence of M. genitalium similar to long recognized pathogens, Chlamydia trachomatis and Neisseria gonorrhoeae. The purpose of this study was to establish the prevalence and epidemiology of M. genitalium in a mid-Pacific military population. METHODS: A prospective analysis was conducted from routine specimens collected as standard of care for sexually transmitted infection (STI) testing at Tripler Army Medical Center on Oahu, HI. The prevalence of M. genitalium was determined using the Aptima M. genitalium assay, a transcription-mediated amplification test. A multivariate analysis was performed to assess the associations for this infection with other STIs and demographic factors. RESULTS: A total of 1876 specimens were tested in a 6-month period including 6 sample types from 1158 females and 718 males. Subject ages ranged from 18 to 76 years, with a median of 24 years (interquartile range, 21-29 years). The prevalence of M. genitalium was 8.8% overall (n = 165), 7.1% in females and 11.6% in males. Coinfection with M. genitalium occurred with another sexually-transmitted pathogen in 43 patients (18.3%), with C. trachomatis as the most common organism (n = 38). CONCLUSIONS: These data contribute to the evidence base for M. genitalium and STI screening in an active-duty military.