Objective: To study the hypothesis that migratory waterfowl are possible disseminators of Vibrio cholerae and Aeromonas. Methods: We monitored the presence of V. cholerae and Aeromonas in three wild waterfowl species. Results: V. cholerae and Aeromonas species were isolated and identified from intestine samples of little egrets and black-crowned night herons. Only Aeromonas species were isolated from black-headed gulls. The majority of Aeromonas isolates were A. veronii. Twenty-three V. cholerae serogroups were identified. V. cholerae serogroup O1 was found in the intestine DNA extractions from four little egrets and black-crowned night herons; six birds carried cholera toxin subunit A gene. Conclusion: Wild waterfowl species may carry pathogenic V. cholerae O1 and non-O1 serogroups and Aeromonas species in their intestine. The migration of waterfowl is a potential mechanism for global distribution of V. cholerae and Aeromonas.
Bibliographical notePublisher Copyright:
© 2018 John Wiley & Sons Ltd
- Vibrio cholerae
- cholera toxin
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Infectious Diseases