Hernández, JorgeStedt, JohanBonnedahl, JonasMolin, YlvaDrobni, MirvaCalisto Ulloa, NancyGómez Fuentes, ClaudioAstorga España, María SoledadGonzález Acuña, DanielWaldenström, JonasBlomqvist, MaríaOlsena, Björn2018-04-172018-04-172012-03March 2012 Volume 78 Number 61098-5336http://hdl.handle.net/20.500.11894/1060Escherichia coli bacteria with extended-spectrum -lactamase (ESBL) type CTX-M resistance were isolated from water samples collected close to research stations in Antarctica. The isolates had blaCTX-M-1 and blaCTX-M-15 genotypes and sequence types (ST) indicative of a human-associated origin. This is the first record of ESBL-producing enterobacteria from Antarctica.enCreative Commons Attribution 4.0 International licenseCienciaContaminación del aguaArtículo