Atypical Mutation in Neisseria gonorrhoeae 23S rRNA Associated with High-Level Azithromycin Resistance

Autor: Henrietta Hardin, Aaron Olsen, Brad Roland, Ellen N. Kersh, Ruth Sanon, Samera Sharpe, Jonathan S. Carlson, Brian H. Raphael, Grace Woods, Olusegun O. Soge, Hsi Liu, Evelyn E. Nash, Karen Schlanger, Matthew W. Schmerer, Sancta B. St. Cyr, Cau D. Pham, Kevin Sellers
Rok vydání: 2021
Předmět:
Zdroj: Antimicrob Agents Chemother
ISSN: 1098-6596
0066-4804
DOI: 10.1128/aac.00885-20
Popis: A2059G mutation in the 23S rRNA gene is the only reported mechanism conferring high-level azithromycin resistance (HL-AZMR) in Neisseria gonorrhoeae . Through U.S. gonococcal antimicrobial resistance surveillance projects, we identified four HL-AZMR gonococcal isolates lacking this mutational genotype. Genetic analysis revealed an A2058G mutation of 23S rRNA alleles in all four isolates. In vitro selected gonococcal strains with homozygous A2058G recapitulated the HL-AZMR phenotype.
Databáze: OpenAIRE