RT journal article T1 First identification of bla(NDM-1) carbapenemase in bla(OXA-94)-producing Acinetobacter baumannii ST85 in Spain T2 Detección por primera vez en España de la carbapenemasa bla(NDM-1 )en Acinetobacter baumannii ST85 productor de bla (OXA-94) A1 Fernández Cuenca, Felipe A1 Pérez Palacios, Patricia A1 Galán Sánchez, Fátima A1 López Cerero, Lorena A1 López Hernández, Inmaculada A1 López Rojas, Rafael A1 Arca Suárez, Jorge A1 Díaz-de Alba, Paula A1 Rodríguez Iglesias, Manuel Antonio A1 Pascual, Alvaro A2 BiomedicinaBiotecnología y Salud Pública K1 A. baumannii K1 NDM-1 K1 OXA-94 K1 ST85 AB Introduction: NDM-1 carbapenemase is spreading rapidly all over the world, but this metallo-beta-lactamase has just been detected for the first time in an Acinetobacter baumannii (Ab) isolate of the ST85 clone in Spain. The aim of this study was to characterize a NDM-1-producing carbapenem-resistant A. baumannii (CR-Ab) isolate submitted to the Andalusian PIRASOA [infection prevention program] referral laboratory.Methods: Carbapenemases were detected by PCR and Sanger DNA sequencing. Whole genome sequencing was performed by NGS (Miseq, Illumina). Resistance genes were identified with RESfinder, while MLSTfinder was used for sequence typing (ST). The genetic location of bla(NDM-1) was determined by nuclease S-1/PFGE/hybridization with specific probe.Results: The isolate was susceptible to amikacin and tigecycline and belonged to the ST85 clone. bla(OXA-94) and bla(NDM-1) were identified by PCR and Sanger DNA sequencing, respectively. The resistance genes aadB, bla(ADC-25), bla(NDM-1), bla(OXA-94), msr(E), mph(E) and floR, sul2 were identified by NGS. The chromosome of the isolate contained a defective Tn125 transposon with bla(NDM-1) flanked by the insertion sequences ISAbA125 and ISAba14. The bla(NDM-1) gene was only detected in the chromosomal DNA.Conclusion: This is the first time that bla(NDM-1) has been detected and characterized in a bla(OXA-94)-producing CR-Ab isolate belonging to the ST85 clone in Spain PB ELSEVIER SN 0213-005X YR 2020 FD 2020-01 LK http://hdl.handle.net/10498/23058 UL http://hdl.handle.net/10498/23058 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 07-nov-2026