First nosocomial outbreak of SME-4-producing Serratia marcescens in South America Juana Vega; Carlos H. Rodriguez; Ignacio Viscardi; Carlos Vay; Silvina Torres; Emilce Tabares; Angela Famiglietti; Marcela Nastro;

Epidemiology of colistin resistance mediated by mcr-1 in carbapenemase-producing Enterobacterales in Ecuador in three periods from 2016 to 2022 Claudia Soria-Segarra; Carmen Soria-Segarra; José Gutierrez-Fernandez;

Antimicrobial resistance profiles in multidrug-resistant Pseudomonas aeruginosa isolates in a university hospital in Argentina. Activity of new antibiotic combinations Carla Alvarez; Juliana Bello; Carlos Vay; Ángela Famiglietti; Marcela Nastro; Hernán Rodríguez;