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Avian influenza overview August - November2019
EFSA Journal. European Food Safety Authority
|July 7, 2020
Summary
A low pathogenic avian influenza A(H5) outbreak occurred in France. Highly pathogenic avian influenza A(H5N6) was reported in Nigeria, marking its first appearance in Africa. Surveillance remains crucial.
Area of Science:
- Veterinary Virology
- Epidemiology
- Public Health
Background:
- Avian influenza poses a significant threat to poultry health and global food security.
- Monitoring outbreaks is crucial for early detection and control of avian influenza viruses.
- Recent reports indicate a decrease in highly pathogenic avian influenza (HPAI) outbreaks globally.
Purpose of the Study:
- To report on avian influenza outbreaks in poultry and wild birds globally between August and November 2019.
- To characterize the genetic relationship of avian influenza viruses.
- To assess the risk of HPAI incursions into Europe and provide recommendations for surveillance.
Main Methods:
- Genetic characterization of avian influenza viruses.
- Analysis of reported outbreaks in poultry and wild birds.
- Risk assessment for HPAI incursion into European poultry.
Main Results:
- One low pathogenic avian influenza (LPAI) A(H5) outbreak in poultry in France.
- First report of highly pathogenic avian influenza (HPAI) A(H5N6) in chickens in Nigeria.
- Fewer HPAI outbreaks reported in Asia and Africa compared to the previous period; no HPAI detections in wild birds worldwide.
- Low risk of HPAI incursion from wild birds into European poultry.
Conclusions:
- Continued passive surveillance of avian influenza in wild birds is essential for early detection of HPAI incursions.
- Maintaining a high alert level and biosecurity standards in poultry establishments is vital despite decreased outbreak numbers.
- The risk of zoonotic transmission of HPAI to the general public in Europe is very low.
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