Multicenter study to assess the in vitro activity of tigecycline by disk diffusion test against clinical isolates from Argentina.

Background: Tigecycline is a new antibiotic currently used in healthcare environments where multidrug resistance is prominent. Because there is a constant potential for resistance to emerge, survey studies are needed.

Methods: Isolates collected in 20 clinical laboratories from 4 states of Argentina between November 2005 and October 2006 were tested using the disk diffusion method as described by the CLSI.