Emergence of resistance to ciprofloxacin in Neisseria meningitidis in Brazil Navegación de entradas Daptomycin Resistance in Clinical MRSA Strains Is Associated with a High Biological Fitness Cost Genetic Diversity of KPC-Producing Escherichia coli Klebsiella oxytoca, Serratia marcescens and Citrobacter freundii Isolates from Argentina