Report of two events of nosocomial outbreak and pseudo-outbreak due to contamination with Achromobacter spp. Liliana Clara; María Ines Staneloni; Estela Salazar; Graciela Greco; Mariangeles Visus; Alicia Lizzi; Valeria Alexander; Gabriel Gutkind; Marcela Radice; Mariana Papalia;

Emergence and clonal expansion of Klebsiella pneumoniae ST307, simultaneously producing KPC-3 and NDM-1 Daniela Cejas; Francisco Magariños; Alan Elena; Micaela Ferrara; Cecilia Ormazábal; María Valeria Yernazian; Gabriel Gutkind; Marcela Radice;

Desarrollo de un medio simple para el aislamiento selectivo de bacterias del grupo Streptococcus anginosus Elena M. Berardinelli; Horacio A. Lopardo;