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अमूर्त

Strains of Salmonella enterica Isolated from Abattoirs in Ile-Ife, Osun State, Nigeria

Joseph Omololu-Aso1*, K. Aliu1, Oluwaseun O. Omololu-Aso2, Oluwagbenro Adesunloro1

Background: Salmonellosis is one of the most common and widely distributed food borne diseases with tens of millions of human cases occurring worldwide per annum.

Materials and methods: Forty-eight samples were obtained from abattoirs in three local government areas (Ife central, Ife east and Ife north local government areas) out of the four local government areas in Ile-Ife, Osun state, Nigeria. This was between September and November 2018. The samples were transported to the microbiology laboratory, Obafemi Awolowo university, Ile-Ife, Osun state, Nigeria and cultured on pre-enrichment media (Nutrient agar and MacConkey agar) for 18 hours-24 hours at 37°C. They were later transferred into Salmonella-Shigella agar and incubated for 48 hours at 37°C. Isolates were subjected to antimicrobial susceptibility testing on Mueller Hinton medium by disc diffusion method. Results interpretation was done based on the clinical and laboratory standard institute criteria.

Results: Twenty-two Salmonella enterica strains were obtained from a total of 48 samples, representing a prevalence rate of 45.8%. These were: Five strains from Ife central local government with a prevalence rate of 25%; eight strains from Ife east local government with a prevalence rate of 53.3%; nine strains from Ife north local government with a prevalence rate of 69.2%. The strains of Salmonella in this study exhibited multiple-antibiotic resistance. There was however significant susceptibility to Augmentin (Susceptible rate was 54.5%).

Conclusion: Proper hygiene amongst meat handlers should be advocated in the three local government areas. The indiscriminate use of antibiotics should be discouraged in the three localities.