the in-vitro activity of azithromycin against 60 clinical isolates of salmonella typhi was determined by broth microdilution and compared with eight macrolides , including erythromycin , and with other orally administered antimicrobial agents ( ampicillin , amoxycillin , cefaclor , trimethoprim/sulphamethoxazole , chloramphenicol , tetracycline , and ciprofloxacin ) .
C1136254
antimicrobial agents
C0039644
tetracycline