Antimicrobial Resistance Patterns of and Species at the Ethiopian Public Health Institute, Ethiopia: A Five-Year Retrospective Analysis

Overview

Journal Infect Drug Resist

Publisher Dove Medical Press

Date 2023 Sep 19

PMID 37724092

Authors

Abera Abdeta

Degefu Beyene

Abebe Aseffa Negeri

Affiliations

Soon will be listed here.

Abstract

Purpose: The study aimed to investigate the antimicrobial resistance patterns of and species isolated from clinical specimens over a period of five years, including resistance to methicillin and vancomycin.

Patients And Methods: Bacterial identification and antimicrobial susceptibility testing reports from 2017 to 2021 at the Ethiopian Public Health Institute were used for this retrospective study. The organisms were identified using either BD Phoenix M50, Vitek 2 compact, or conventional biochemical methods, whichever was available at the time of testing. The antimicrobial susceptibility profiles of the isolates were determined using either Kirby-Bauer disc diffusion, BD phoenix M50, or Vitek 2 compact. WHONET software was used to analyze the antimicrobial resistance patterns of both organisms. The p-values of ≤0.05 were considered statistically significant.

Results: During the study period, a total of 315 and 92 species were isolated. Out of 315 isolates, 27% and 5.1% were methicillin and vancomycin resistant, respectively. showed very high resistance to Penicillin G (86.7%). Out of 92 species recovered, 8.7% were vancomycin-resistant. species showed very high resistance to Penicillin G (71.4%) and tetracyclines (83.3%). Methicillin-resistant shows 100% resistance to penicillin followed by ciprofloxacin (50%), erythromycin (45.6%), and tetracycline (44.2%) and lower resistance to vancomycin (18.8%). All vancomycin-resistant isolates of both organisms were fully resistant (100%) to all antibiotics tested, except for linezolid and daptomycin, to which they were susceptible.

Conclusion: This study found a high prevalence of methicillin and vancomycin-resistant and vancomycin-resistant species between 2017 and 2021. However, there were no statistically significant changes in the prevalence of these organisms during the study period. This suggests that larger and more representative nationwide data is needed to show trends of these pathogens.

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