Introduction: In the last few decades, Serratia marcescens has caused various infections and has proven dangerous when left untreated. It is a gram-negative bacillus that has been …show more content…
marcescens was most resistant to Ampicillin and least resistant to Nalidixic Acid. This aligns with my individual data. For Streptomycin, the mean zone of inhibition was 21.9 mm, and the standard deviation was 3.99. For Chloramphenicol, the mean was 24.8 mm, and the SD was 5.03. For Nalidixic Acid, the mean was 31.8 mm, and the SD was 2.55. For Kanamycin, the mean was 22.1 mm, and the SD was 1.49. For Gentamycin, the mean was 24.9 mm, and the SD was 2.95. For Ampicillin, the mean was 7.6 mm, and the SD was 2.68. Standard error was calculated for each antibiotic and represented on the graph with 1SE error