Detection of carbapenemase producing Acinetobacter baumannii ST19 from Georgia and Ukraine carrying blaOXA-23, blaOXA-72, and/or blaNDM-5, December 2019 to June 2023
Ting Luo, Melissa J. Martin, Valentyn Kovalchuk, Viacheslav Kondratiuk, Nino Trapaidze, Magda Metreveli, Christine Hulseberg, Henry D. Dao, Yoon I. Kwak, Rosslyn Maybank, Thomas Musich, Matthew R Scherer, Jason W. Bennett, Patrick McGann, François Lebreton
Abstract
In 2003−2023, amid 5,436 Acinetobacter baumannii isolates collected globally through the Multidrug-Resistant Organism Repository and Surveillance Network, 97 were ST19 PAS , 34 of which carbapenem-resistant. Strains (n = 32) sampled after 2019 harboured either bla OXA-23 , bla OXA-72 , and/or bla NDM-5 . Phylogenetic analysis of the 97 isolates and 11 publicly available ST19 genomes revealed three sub-lineages of carbapenemase-producing isolates from mainly Ukraine and Georgia, including an epidemic clone carrying all three carbapenemase genes. Infection control and global surveillance of carbapenem-resistant A. baumannii remain important.