Datta, SK2025-07-142025-07-142004https://hdl.handle.net/20.500.14572/169An in vitro antimicrobial sensitivity of Cefazolin and Ampicillin towards 85 strains of Staphylococcus aureus and 52 strains of Esch. Coli was carried out by Kirby-Baurer's Technique at Microbiology Dept. Nepalgunj Medical College, Nepal. 47% Staphylococcus aureus and 25% Esch. coli. were found sensitive to Cefazolin where as sensitivity pattern of Ampicillin was 19% and 7.74% respectively. Key words: Cefazolin, Ampicillin, Antimicrobial Sensitivity Testen-USArticle