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Author Spotlight: Advancing Antibiotic Resistance Research Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System
Published on: January 5, 2024
Molecular epidemiology of multidrug-resistant Acinetobacter baumannii isolates from hospitals in Myanmar
Tatsuya Tada1, Hiroki Uchida1, Tomomi Hishinuma1
1Department of Microbiology, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Objective:
The aim of this study was to clarify the genetic and epidemiological properties of multidrug-resistant Acinetobacter baumannii in medical settings in Myanmar.
Methods:
A total of 45 A. baumannii clinical isolates were obtained in medical settings in Myanmar. The whole genomes were sequenced by a next generation sequencer, and the phylogenetic tree was constructed from single nucleotide polymorphism concatemers. Multilocus sequence types were deduced and drug resistance genes were identified.
Results:
Thirty-eight MDR Acinetobacter baumannii isolates were obtained from seven hospitals in Myanmar. The majority of MDR A. baumannii isolates belonged to ST2. Of the 38 isolates, 5 harbored blaNDM-1, and 28 did armA or armA2 CONCLUSIONS: A. baumannii ST2 producing 16S rRNA methylase ArmA has been spreading in medical settings in Myanmar.
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