Abstract
Spread of antimicrobial-resistant bacteria between humans and animals occurs when the environment is contaminated with animal and human wastes. A total of 30 samples were collected from the Akaki river to identify antimicrobial-resistant bacteria. Bacterial enumeration and characterization was done by spreading serially diluted water samples on MacConkey agar. Sixty four bacterial isolates were identified and susceptibility tested using VITEK 2. The most frequently identified bacteria were Providencia alcalifaciens 10 (15.6%), Kluyvera cryocrescens 9 (14.1%) and Citrobacter freundii 7(10.9%), respectively. Multiple drug resistant bacteria were identified, constituting 17 (28%) of the 64 identified isolates. Multiple antimicrobial resistance (MAR) index of the six sites laid in the range 0.13–0.27, being the highest score located downstream of all the sampling sites. Species MAR index varied from 0.12 to 0.40. Out of 64 isolates, 54 (84.4%) of them were resistant to Ampicillin. On the contrary, most of the isolates were sensitive to Amikacin and meropenem. In conclusion, our findings indicated E.coli count was above the WHO permissible levels. The predominant isolates were P. alcalifaciens, and C. freundii. The MAR index of major isolates was greater than two, implying the study sites were exposed to high-risk sources of human or animal contamination.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Comparative Immunology, Microbiology and Infectious Diseases
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
