Bacterial isolates and their antimicrobial susceptibility pattern among patients with ocular infections at the University of Gondar Hospital, Northwest Ethiopia: A 10-years retrospective study

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Abstract Abstract Objective: The aim of this study was to identify potential bacterial isolates and their antimicrobial susceptibility pattern among patients who visited eye clinic of Gondar university hospital. Results: From year of January 2009 to January 2019 a total of 319 eye discharge specimens were submitted for microbiological analysis, of which 133(41.7%) were culture positive. A total of 42(31.6%) Gram negatives and 91(68.4%) Gram-positive bacteria were isolated. Among isolated Gram-negative bacterial species, Klebsiella spp was the most predominant, 42.9% followed by E. coli 26.2%. Among isolated Gram-positive pathogenic bacterial species, S. aureus was the most prevalent, 59.5% followed by S. pyogenes , 8% and S. pneumoniae , 5.5%. Most of the bacterial isolates were resistant to cotrimoxazole, 81.6%, amoxicillin, 78.7%, tetracycline,76.2%, and ampicillin 75.9%. About 47.4 % of bacterial isolates showed multi drug resistance to three or more classes of antimicrobials. Antimicrobials like: ampicillin, amoxicillin, ceftriaxone, ciprofloxacin, and norfloxacin exhibited year to year increment of resistance (p<0.0001).

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