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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Am J Ophthalmol. 2018 Oct 9;198:54–62. doi: 10.1016/j.ajo.2018.09.032

Table 3:

Percentage (%) Antibiotic Susceptibility of Gram-Negative Isolated Organisms from Saint Louis (1999–2013)

Organism Ampicillin Ceftazidime Gentamicin Tobramycin Amikacin
All Gramnegative, N=81 9/20 (45%) 74/74 (100%) 77/78 (99%) 74/76 (97%) 74/75 (99%)
Pseudomonas
aeruginosa,
N=56		 NT 55/55 (100%) 56/56 (100%) 55/55 (100%) 55/55 (100%)
Serratia
marcescens,
N=9		 3/7 (43%) 9/9 (100%) 9/9 (100%) 7/8 (88%) 9/9 (100%)
Other Gramnegative, N=16 6/12 (50%) 10/10 (100%) 12/13 (92%) 12/13 (92%) 10/11 (91%)
Organism Trimethoprim / Sulfa Ciprofloxacin Levofloxacin
All Gram-negative, N=81 17/19 (89%) 70/71 (99%) 34/34 (100%)
Pseudomonas
aeruginosa,
N=56		 NT 56/56 (100%) 18/18 (100%)
Serratia
marcescens,
N=9		 7/7 (100%) 5/5 (100%) 7/7 (100%)
Other Gramnegative, N=16 9/9 (100%) 9/10 (90%) 9/9 (100%)

NT = not tested