Saeeda Nabat-ul Hassan, Ghulam Asghar Bhutta, Khushbu Farva.
Frequency of extended spectrum beta lactamase in E.CoIi and klebsiella pneumoniae in bacterial cultures..
Professional Med J Jan ;28(09):1288-91.

Objective: To determine frequency and pattern of extended spectrum beta lactamase in Klebsiella pneumoniae and E. coli in bacterial cultures. Study Design: Cross Sectional study. Setting: Department of Pathology Sahara Medical College Narowal. Period: January to June 2020. Material & Methods: Total 1100 bacterial isolates were studied out of them 655 E.coli and 445 of klebsiella pneumoniae. All samples were subjected to double disc diffusion method using third generation cephalosporin and amoxacillin-clavulanic acid for detection of ESBL. Data was analyzed using SPSS software version 24, and results were calculated in the form of frequency, percentage and standard deviation. P-value ≤0.05 was taken as statistically non-significant. Results: There were 48.9% male and 51.1% female subjects out of 1100 total cases. E.coli was detected in 59.5% and klebsiella in 40.5% samples. Total 44.2% samples were positive for ESBL enzyme. Of 655 E.coli samples 40.8% and of 445 Klebsiella pneumoniae samples 49.2% were positive for ESBL enzyme. Conclusion: It is necessary to detect ESBL positive Klebsiella pneumoniae and E.coli in laboratory workflow to avoid unnecessary use of antibiotics and development of resistance against them.

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