Document Detail

Epizootiology of avian cholera in wildfowl.
MedLine Citation:
PMID:  1920657     Owner:  NLM     Status:  MEDLINE    
Pasteurella multocida, the cause of avian cholera, has naturally infected over 100 species of free-living birds. Among wild birds, avian cholera has its greatest impact on North American wildfowl. Epizootics usually are explosive in onset and may involve thousands of birds. The disease has been reported in every month of the year among wildfowl. Disproportionate mortality, with some species suffering proportionately greater mortality than others, has been a common feature of this disease. Presence of animal organic matter plays a significant role in the survival of P. multocida. There are conflicting reports or a lack of information on the role of host sex, age, body size, other physical features, genetic variation or behavioral differences, as predisposing factors to infection by P. multocida. There also are ambiguities on the relationship between season, precipitation, temperature, nutritional stress, water quality, other microorganisms, and environmental contaminants, and the occurrence of avian cholera in wildfowl. Two competing hypotheses for the year-round reservoir of wildfowl strains of P. multocida are ambient soil or water of enzootic sites, and carrier animals; most current evidence favors the role of carrier animals. Transmission most likely occurs by ingestion of contaminated water, inhalation of bacteria-rich aerosols, or both. While many techniques have been proposed to prevent or control avian cholera, none have been rigorously tested to determine their effectiveness.
R G Botzler
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of wildlife diseases     Volume:  27     ISSN:  0090-3558     ISO Abbreviation:  J. Wildl. Dis.     Publication Date:  1991 Jul 
Date Detail:
Created Date:  1991-11-05     Completed Date:  1991-11-05     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0244160     Medline TA:  J Wildl Dis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  367-95     Citation Subset:  IM    
Department of Wildlife, Humboldt State University, Arcata, California 95521.
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MeSH Terms
Animals, Wild
Bird Diseases / epidemiology*,  prevention & control,  transmission
Disease Outbreaks / veterinary*
Disease Reservoirs
Disease Susceptibility
Pasteurella Infections / epidemiology,  prevention & control,  transmission,  veterinary*
Pasteurella multocida*
Comment In:
J Wildl Dis. 1992 Oct;28(4):674-82   [PMID:  1474673 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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