Numerous vaccines have been devised to combat highly pathogenic avian influenza (HPAI), primarily consisting of inactivated whole-virus vaccines for poultry. Data about immunity onset and duration in the target species being key for effective planning.
Over 420 billion doses of avian influenza H5 vaccine have been used in poultry since 2002 as oil-emulsified, inactivated whole AIV vaccines (>90%) and live vectored vaccines (<10%). Over 99% of the vaccine has been used in the four H5N1 HPAI enzootic Members: China (People’s Rep. of) including Hong Kong (>90%), Egypt, Indonesia, and Vietnam where vaccination programs have been nationwide and routine to all poultry.
Certainly! When selecting inactivated avian influenza H5 vaccines for poultry, several principles should be considered to ensure optimal protection and productivity.
these key points include:
In conclusion, the use of vaccination against avian influenza may be recommended under specific conditions. Whether to vaccinate or not should be decided by the Veterinary Authority based on the avian influenza situation as well as the ability of the Veterinary Services to implement the vaccination strategy including the post vaccination surveillance and monitoring practices.