Cattle Preconditioning Forum: Parasites – Fact Or Fiction
Cattlenetwork.com
Parasites can reduce effectiveness of vaccination programs. FACT
Vaccines given to unhealthy cattle are as effective as vaccines given to healthy cattle. FICTION. An unhealthy animal, such as one that is parasitized, has a suppressed immune system so it can’t mount an adequate immune response to the vaccine.
Some parasites can release substances that turn off the immune system function all around them. FACT. Ostertagia ostertagi, or brown stomach worms, can release a substance into the cow’s system that reduces immune function.
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