VACCINE FAILURE: CAUSES AND PREVENTION

Vaccination route

Animals are susceptible to a variety of diseases. And one of the keys to producing and harvesting healthy animals is by observing and carrying out a proper vaccination routine.
vaccine failure is when an organism contracts a disease in spite of being vaccinated against it. Primary vaccine failure occurs when an animal's immune system does not produce antibodies when first vaccinated. Vaccines can fail when several series are given and fail to produce an immune response.
Archiving initial immunity may require more than one round of vaccination.

Routes of Vaccination
• Drinking water,
• Air sprays,
• Eye inoculation and
• Orally etc.

Likely Causes of Vaccine Failure
Vaccine failure may be caused by multiple factors including;
Animal Health Statues,Environment and Pathogen.

Improper storage: Storing under heat
Improper timing: Vaccinating in the hot hot hours.
Use of Epired Vaccine: Vaccines that has lost their potency before use
Improper administration: Following wrong administration route
Inadequate dosage: Use of insufficient dosage for a herd
Exposure to sunlight
Improper formulation

How to Prevent Vaccine Failure
√ Keep vaccines refrigerated and not frozen
√ Use vaccine before expiration date
√ Vaccinate healthy animals
√ Keep vaccine out of direct sunlight
√ Use stabilizers like milk.

Read also;
How to be a good poultry farmer
How to prevent mortality in poultry
Feeding pigs with poultry manure
How prepare poultry brooding house
Feeding broilers with PKC

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