Infection of Swans and Geese with H5N1 Avian Influenza Virus
Author Information
Author(s): Justin D. Brown, David E. Stallknecht, David E. Swayne
Primary Institution: College of Veterinary Medicine of the University of Georgia
Hypothesis
The study aims to evaluate the susceptibility and viral shedding patterns in swans and geese infected with HPAI virus (H5N1).
Conclusion
The study found that susceptibility to HPAI (H5N1) infection and viral shedding varied significantly between different species of swans and geese.
Supporting Evidence
- All swans infected with the virus showed 100% mortality.
- Black swans were the most susceptible, dying within 2-3 days post-exposure.
- Cackling geese showed a delayed onset of illness compared to swans.
- Viral shedding was detected in all species, but the duration and concentration varied.
- Mute swans shed high concentrations of virus for several days without showing clinical signs.
Takeaway
The researchers infected swans and geese with a bird flu virus to see how sick they would get and how much virus they would spread. They found that some birds got very sick and spread the virus more than others.
Methodology
The study involved experimentally infecting 4 species of swans and 2 species of geese with the HPAI virus and monitoring their health and viral shedding over 14 days.
Limitations
The study was limited to captive-bred birds and may not fully represent wild populations.
Participant Demographics
The study included 4 species of swans and 2 species of geese, all bred in captivity.
Digital Object Identifier (DOI)
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