Wild waterfowl as potential vectors of Vibrio cholerae and Aeromonas species

Sivan Laviad-Shitrit, Ido Izhaki, Eiji Arakawa, Malka Halpern

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)758-764
Number of pages7
JournalTropical Medicine and International Health
Issue number7
StatePublished - Jul 2018

Bibliographical note

Publisher Copyright:
© 2018 John Wiley & Sons Ltd


  • Aeromonas
  • Vibrio cholerae
  • cholera toxin
  • dispersion
  • epidemiology
  • host
  • waterbird
  • waterfowl

ASJC Scopus subject areas

  • Parasitology
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases


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