In order to promptly identify any outbreaks of avian influenza in poultry farms and to certify the absence of the disease, allowing the movement of animals, vaccination is essential.
However, this strategy must be accompanied by careful post-vaccination surveillance. This is the conclusion reached by the European Food Safety Authority (EFSA) in a scientific opinion published this morning.
“Vaccination is an important tool in the fight against avian influenza and is recommended as part of an integrated approach to disease control. However, it is necessary to follow a strategic surveillance scheme and put measures in place to reduce the risk of transmission of the virus,” he said in a note from the head of the Biological Risks and Animal Health and Welfare unit Frank Verdonck. “Maintaining a high level of biosafety remains essential, even when vaccination is used,” he added.
EFSA experts examined the different surveillance strategies, indicating for each scenario and poultry species (laying hen, turkey, duck) the number of animals to be subjected to analysis, the tests to be performed and the frequency with which to do so.
“Raising awareness among farm managers and industry operators can help ensure that any changes in poultry production or increased mortality are promptly reported and addressed,” concluded Verdonck.