Bacteriological quality and antimicrobial susceptibility profiles of isolates of ready-to-eat raw minced meat from hotels and restaurants in Arba Minch, Ethiopia

PLoS One. 2022 Sep 1;17(9):e0273790. doi: 10.1371/journal.pone.0273790. eCollection 2022.

Abstract

In Ethiopia, the bacteriological quality of ready-to-eat raw meat is of a great public health concern as it can serve as a source of meat-borne pathogens and worsen the transmission of antimicrobial resistant bacteria, and hence this cross-sectional study, done on 257 meat samples (ie., 169 beef, 50 mutton and 38 chevon) from randomly selected hotels and restaurants (n = 52). Approximately 25 gm of meat samples were taken bi-weekly and subjected to quantitative and qualitative analyses; antimicrobial susceptibility tests were done as per the Kirby-Bauer disk diffusion method. It was found that 13.2 (n = 34), 17.5 (n = 45) and 21.8% (n = 56) samples exceeded the permissible limit for total viable and coliform and S. aureus counts, respectively. At the same time, 24.9% (n = 64) surpassed the bacteriological limit permissible for consumption. Overall, 36.6% (n = 94) of samples were extrapolated as unsatisfactory for consumption due to high bacterial load and or the presence of pathogens. Five different bacterial spp. such as E. coli 65% (n = 167), S. aureus 59% (n = 152), Salmonella spp. 28.4% (n = 73), Campylobacter spp. 14.4% (n = 37) and Shigella spp. 4.3% (n = 11) were isolated in varied proportions. Alarmingly, 60% (n = 264) of the isolates were multi-drug resistant and 51% of S. aureus were found to be MRSA.

MeSH terms

  • Animals
  • Anti-Bacterial Agents / pharmacology
  • Cattle
  • Cross-Sectional Studies
  • Escherichia coli*
  • Ethiopia
  • Meat / microbiology
  • Microbial Sensitivity Tests
  • Restaurants*
  • Staphylococcus aureus

Substances

  • Anti-Bacterial Agents

Grants and funding

The author(s) received no specific funding for this work.