Bovine Pneumonic Pasteurellosis
A Biotechnological Approach to Control
DOI:
https://doi.org/10.21423/aabppro19887007Keywords:
vaccination, livestock industry, vaccine design, vaccination program, immune responseAbstract
The acknowledged efficacy of vaccination in preventing major infectious diseases is based upon obvious successes such as that against smallpox, which was declared eradicated in 1980 (24), or the Clostridium sp bacterin-toxoids which are used in man and animals.
Expectations for vaccine usefulness are consequently high, but many diseases which are apparently amenable to vaccine-based control remain as significant sources of economic loss in the livestock industry. Failure to observe certain basic principles of vaccine design may have contributed to this. Vaccination is feasible and warranted if directed towards an economically important infectious disease of livestock which is caused by an identified infectious agent with known virulence-mediating determinants which induce protective immune response against a realistic challenge under usual husbandry conditions. The vaccination program must be cost-effective.