Fact Sheet Written by:
T. R. Thedford, DVM, Extension Veterinarian
And Provided by
Oklahoma State University
All livestock producers use vaccines at one time or another in the day-to-day operation of their farms. If these products are not properly handled, little or no immunity will result from the use of the product. In addition to being costly, the false sense of security gained by the producer could result
in severe losses before the actual cause of the disease is discovered.
Vaccines are used to produce immunity to livestock diseases.
The immunity that is produced will vary in its protective ability due to the type of vaccine used, organism (bacteria or virus) the immunity is to protect against, and the degree of challenge the animal receives from the virulent (infecting) organism. Stress and environmental conditions as well as handling of the vaccine and equipment used for the process, will affect the production and duration of immunity in the animal.
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