Racing pigeons and Avian Influenza: what does scientific research say?
Avian influenza (bird flu) is a disease that is mainly associated worldwide with poultry such as chickens and turkeys. During outbreaks, questions regularly arise about whether racing pigeons could play a role in becoming infected with or spreading this disease. An important American study conducted in 1996 examined this issue in detail.
Aim of the study
The objective of the study was to determine:
whether pigeons are susceptible to infection with avian influenza virus (AIV)
whether they can replicate and shed the virus
whether they pose a risk to other bird species, such as chickens or turkeys
Study design
Under controlled laboratory conditions, healthy pigeons were exposed to:
low pathogenic and
high pathogenic strains of avian influenza virus
Inoculation was carried out via different routes:
the oculo-nasal route (eyes and nostrils), simulating natural exposure
intravenous inoculation (directly into the bloodstream), representing a very stringent test
The pigeons were monitored closely over a period of several weeks.
Results
The results were clear and consistent:
None of the pigeons showed clinical signs of disease, even after exposure to high virus doses
No virus shedding was detected during testing at 7, 14, and 21 days post-inoculation
Post-mortem examinations revealed no lesions or pathological changes
Blood samples showed no detectable antibodies against AIV
These findings demonstrate that the virus did not replicate in the pigeons.
Conclusion of the researchers
The study concluded that pigeons:
are not susceptible to infection with avian influenza under the conditions tested
do not shed the virus
do not develop a measurable immune response
Therefore, pigeons do not function as a host for avian influenza virus.
Supporting field data
These experimental results are supported by field studies conducted during previous AIV outbreaks in the United States, where:
thousands of animals from quarantine zones were tested
including hundreds of pigeons
none of the pigeons tested positive for AIV or antibodies
Relevance for pigeon racing
Based on this and similar research, racing pigeons in the United States have been classified differently from poultry in avian influenza control measures. Under specific transport conditions, pigeon racing has even been permitted in certain quarantine zones.
Final remarks
Scientific evidence shows that racing pigeons do not play a role in the transmission of avian influenza. These findings provide well-founded reassurance for the pigeon sport.
References
Panigrahy, B., Senne, D. A., Pedersen, J. C., & Pearson, J. E. (1996).
Susceptibility of pigeons to avian influenza.
Avian Diseases, 40(2), 422–424.
United States Department of Agriculture (USDA), National Veterinary Services Laboratories, Ames, Iowa, USA.
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