Heriyannis Homenta, Julyadharma Julyadharma, Hani Susianti, Noorhamdani Noorhamdani, Dewi Santosaningsih
Carbapenem-resistant Acinetobacter baumannii (A. baumannii)-calcoaceticus complex (CRAb-cc) is an important pathogen causing nosocomial infections worldwide; however, molecular epidemiology of the A. baumannii-calcoaceticus complex in Indonesian hospitals is scarce. This study aimed to determine the clonal relatedness of CRAb-cc in two tertiary care hospitals in Malang and Manado in Indonesia. The CRAb-cc isolates from routine clinical cultures in two tertiary care hospitals in Malang and Manado were identified using the Vitek2® system (bioMérieux, Lyon, France). Multi-locus variable-number tandem-repeat analysis (MLVA) typing, multi-locus sequence typing (MLST), clonal complex (CC), and phylogenetic tree analysis were conducted for a subset of isolates. Seventy-three CRAb-cc isolates were collected. The CRAb-cc isolates were frequently found among lower-respiratory-tract specimens. We detected the MLVA type (MT) 1, MT3, and MT4 CRAB-cc isolates belonging to the sequence type (ST) 642, and CC1 was the predominant clone in this study. In conclusion, we identified the clonal relatedness of A. baumannii-calcoaceticus complex isolates in two tertiary care hospitals in Malang and Manado in Indonesia. Further study is required to investigate the clinical importance and distribution of ST642 in Indonesian hospitals for developing prevention and control measures. © 2022 by the authors.
Doctoral Program in Medical Science, Faculty of Medicine, Universitas Brawijaya, Malang, 65145, Indonesia; Department of Clinical Microbiology, Faculty of Medicine, Sam Ratulangi University, Manado, 95163, Indonesia; Laboratory of Clinical Microbiology, Prof. Dr. R. D. Kandou Hospital, Manado, 95163, Indonesia; Department of Clinical Pathology, Faculty of Medicine, Brawijaya University, Malang, 65145, Indonesia; Department of Clinical Pathology, Dr. Saiful Anwar Hospital, Malang, 65112, Indonesia; Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University, Malang, 65145, Indonesia; Department of Clinical Microbiology, Dr. Saiful Anwar Hospital, Malang, 65112, Indonesia
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