Outbreak of Extensively Drug-Resistant Acinetobacter baumannii Indigo-Pigmented Strains |
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| Authors: | Elisabet Vilacoba Marisa Almuzara Lucia Gulone Rocio Rodriguez Elida Pallone Romina Bakai Daniela Centrón María Soledad Ramírez |
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| Affiliation: | Instituto de Microbiología y Parasitología Médica (IMPaM, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Airesa;Laboratorio de Bacteriologíab;Servicio de Infectología,c Hospital Interzonal de Agudos Eva Perón, San Martín, Buenos Aires, Argentina |
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| Abstract: | ![]()
Acinetobacter baumannii pigmented strains are not common in clinical settings. Here, we report an outbreak caused by indigo-pigmented A. baumannii strains isolated in an acute care hospital in Argentina from March to September 2012. Pan-PCR assays exposed a unique pattern belonging to the recently described regional CC113B/CC79P clonal complex that confirms the relevant relationships among the indigo-pigmented A. baumannii strains. All of them were extensively drug resistant and harbored different genetic elements associated with horizontal genetic transfer, such as the transposon Tn2006, class 2 integrons, AbaR-type islands, IS125, IS26, strA, strB, florR, and the small recombinase ISCR2 associated with the sul2 gene preceded by ISAba1. |
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