1. Detection of Novel US Neisseria meningitidis Urethritis Clade Subtypes in Japan.
- Author
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Takahashi H, Morita M, Yasuda M, Ohama Y, Kobori Y, Kojima M, Shimuta K, Akeda Y, and Ohnishi M
- Subjects
- Male, Humans, United States epidemiology, Homosexuality, Male, Japan epidemiology, Neisseria meningitidis genetics, Urethritis epidemiology, Urethritis microbiology, Sexual and Gender Minorities, Meningococcal Infections epidemiology, Meningococcal Infections microbiology
- Abstract
Neisseria meningitidis causes invasive meningococcal diseases and has also been identified as a causative agent of sexually transmitted infections, including urethritis. Unencapsulated sequence type 11 meningococci containing the gonococcal aniA-norB locus and belonging to the United States N. meningitidis urethritis clade (US_NmUC) are causative agents of urethral infections in the United States, predominantly among men who have sex with men. We identified 2 subtypes of unencapsulated sequence type 11 meningococci in Japan that were phylogenetically close to US_NmUC, designated as the Japan N. meningitidis urethritis clade (J_NmUC). The subtypes were characterized by PCR, serologic testing, and whole-genome sequencing. Our study suggests that an ancestor of US_NmUC and J_NmUS urethritis-associated meningococci is disseminated worldwide. Global monitoring of urethritis-associated N. meningitidis isolates should be performed to further characterize microbiologic and epidemiologic characteristics of urethritis clade meningococci.
- Published
- 2023
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