Extended Spectrum Beta-Lactamases Producers among Gram-negative Bacteria from Clinical and Environmental Sources in Two Tertiary Hospitals in Makurdi, Nigeria

Main Article Content

Florence Bose Omoregbe
Obasola Ezekiel Fagade

Abstract

Extended Spectrum Beta-Lactamases (ESBLs) enzymes are produced by many Gram-negative bacteria to nearly all antibiotics. Clinical bacteria isolates were obtained from various clinical samples from the two healthcare facilities. Sewer wastewater and sediments were also collected from both hospitals using standard sampling techniques and bacteria isolated using pour plate technique. Multiple drug resistant patterns were determined using disc diffusion technique. Antibiotics sensitivity of the isolates was verified using disc diffusion method. Detection of ESBL producing bacteria was done using double disc synergy test. Data obtained were analysed using descriptive statistics. Clinical bacteria (403) were obtained, out of which 299 were confirmed Gram-negative, 218 from Federal Medical Centre (FMC) and 81 from Benue State Teaching Hospital (BSUTH). Thirty-nine Gram-negative bacteria were also isolated from the environmental samples. The ESBL producers in clinical isolates were 69 (FMC) and 42 (BSUTH) while in environmental isolates they were eight and four respectively. Out of a total of 338 environmental and clinical isolates from the two hospitals, 216 shown resistance/intermediate resistance to Ceftazidime. Of these 216, 123(36.39%) were positive for ESBLs production.- space From FMC, ESBLs producing bacteria are highly sensitive to imipenem with sensitivity frequency of 62 while they were highly resistant to ceftazidime with a frequency of 52. Age groups 0-5 had the highest percentage distribution of 21.43% and 10.14% from BSUTH and FMC respectively. ESBLs producing bacteria showed multidrug resistance.

Keywords:
Gram-negative bacteria, antibiotic resistance, extended spectrum β-lactamases.

Article Details

How to Cite
Omoregbe, F. B., & Fagade, O. E. (2020). Extended Spectrum Beta-Lactamases Producers among Gram-negative Bacteria from Clinical and Environmental Sources in Two Tertiary Hospitals in Makurdi, Nigeria. Microbiology Research Journal International, 30(5), 42-53. https://doi.org/10.9734/mrji/2020/v30i530220
Section
Original Research Article

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