Systematic Veterinary Virology

CONTROL

•    Vaccination
• Inactivated oil-emulsion vaccines are found to be effective in reducing mortality, preventing disease, or both, in chickens and turkeys.
• Naturally avirulent or attenuated strains can also be used as vaccines. The problem with live vaccine is emergence of new strains due to genetic reassortment. A recombinant fowl pox virus vaccine containing the gene that codes for the production of the H₅ antigen.
• A recombinant fowl pox virus vaccine containing the gene that codes for the production of the H₅ antigen is also used. A recombinant insect virus containing the gene for either the H₅ or H₇ antigen is also used to control AI.
• Biosecurity procedures including control of human traffic, quarantine of birds of unknown disease status into the flock and proper cleaning and disinfection of fomites.
• Free range rearing should not be done in areas where, waterfowls frequent.