Abstract
Vibrio cholerae is a human pathogen and natural inhabitant of aquatic environments. In this study, we surveyed the occurrence of V. cholerae in fish harvested from a reservoir that receives discharges from the population in Ouagadougou through several channels. A total of 238 fish and 80 water samples were analyzed for the presence of V. cholerae. Altogether, 13 V. cholerae strains were isolated. They were all identified as non-O1/non-O139 V. cholerae without the ctxA gene. The strains were mostly susceptible to the antimicrobials tested. Although no strains of epidemic V. cholerae serotypes were encountered, it is important to monitor the microbiological quality of this extensively used water resource and its fish.
Highlights
Vibrio cholerae is a human pathogen and natural inhabitant of aquatic environments
We report on the discovery of V. cholerae in the water and fish from the Tanghin Reservoir and its neighboring channel
Of the V. cholerae strains, 15 were isolated – mainly from fish – between March and May, which corresponds to the warm season
Summary
Vibrio cholerae is a human pathogen and natural inhabitant of aquatic environments. Results: Altogether, 13 V. cholerae strains were isolated They were all identified as non-O1/non-O139 V. cholerae without the ctxA gene. Conclusion: no strains of epidemic V. cholerae serotypes were encountered, it is important to monitor the microbiological quality of this extensively used water resource and its fish. Cholera vibrios are commonly transmitted to humans through ingestion of contaminated food or water, and the disease occurs mainly in developing countries with inadequate sanitation [5,6,7]. V. cholerae strains of non-O1/non-O139 serotypes can cause diarrheal symptoms and extraintestinal infections in humans [11]. Environmental monitoring for the presence of V. cholerae and other Vibrio species with pathogenic potential is important, as it can identify the potential sources of infections
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