Morosini, María IsabelGarcía Castillo, MaríaTato, MartaGijón, DesirèeValverde, AránzazuRuiz Garbajosa, PatriciaCantón, Rafael2023-06-192023-06-192014-051098-660X10.1128 /JCM.03614-13https://hdl.handle.net/20.500.14352/35279The chromogenic βLacta test developed for the rapid detection of β-lactamase-hydrolyzing extended-spectrum cephalosporins in Enterobacteriaceae revealed good performance with extended-spectrum β-lactamase (ESBL) producers (97.5% true-positive results). However, false-negative results occurred with chromosomal AmpC hyperproducers and plasmid AmpC producers, whereas uninterpretable results were mostly due to VIM-1 carbapenemase producers and possibly low levels of expressed ESBLs.engjournal articlehttp://dx.doi.org/10.1128 /JCM.03614-13restricted accessVeterinaria3109 Ciencias Veterinarias