The role of interspecies recombination in the evolution of antibiotic-resistant pneumococci Navegación de entradas A New Twist: The Combination of Sulbactam/Avibactam Enhances Sulbactam Activity against Carbapenem-Resistant Acinetobacter baumannii (CRAB) Isolates A fusion plasmid harboring blaCTXM-15 and qnrB2 isolated from a clinical Escherichia coli: the multiresistant outcome of multiple complex genomic rearrangements between two conjugative plasmids