Trends in anti-bacterial resistance among Streptococcus pneumoniae isolated in the USA, 2000-2003: PROTEKT US years 1-3

Penicillin and erythromycin resistance among isolates of S. pneumoniae from the U.S.A. remained high over the 3 years of the study. Telithromycin demonstrated potent in vitro activity against pneumococcal strains.