COMMON REASONS FOR VACCINATION FAILURE.

The success of the venture depends on following strict health protocols that are wrapped around simple but effective bio security strategy. The health protocol involves vaccinations coupled with medications when needed. Vaccination refers to a method of disease prevention in healthy animals by challenging the animal with an attenuated/killed agent of a disease so as to elicit the production of antibodies. When vaccinations are done properly and immunity conferred,the animal is said to have been immunized against such causative agents of disease.Vaccination though stimulates antibodies production to protect the animals ,but if not done properly ;the desired immunity will not be conferred.When immunity is not conferred,2 major causes are fingered.These are vaccine failure or vaccine break. When immunity is not conferred due to vaccine break,the following are causes; 1)when the cold chain is broken; usually from point of sale to area you need them.The vaccines are to be transported in coolers with enough ice packs for the trip.The potency of the vaccines cant be guaranteed when this occurs,and when used the required immunity is not conferred. 2) when using inappropriate dilution and concentration; this nullifies any effect the vaccine should have on the birds. 3)when expired vaccines are used,definitely no immunity can be conferred. While vaccine failure could occur in any of the following scenarios;1)using inappropriate dose; under/overdosing will not elicit any antibody reaction. 2)wrong dilution/route. 3)vaccination of sick birds. 4)stress on birds during handling especially in hot weather. 5)Use of chemicals along side the vaccines especially water purification solutions. 6)vaccinating birds when signs of diseases are visible in flock. Vaccinations though very essential, if not properly carried out will just be a waste of resources. When planning to vaccinate keep it simple,follow these guidelines; 1)place vaccine in ice pack. 2)engage qualified personnel. 3) use vaccine as directed by manufacturers.