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Vaccination serves as a critical measure for preventing and controlling infectious poultry diseases and enhancing disease resistance. Field technical services frequently observe varying degrees of adverse reactions in poultry following immunization.
The effectiveness of immunization can be evaluated through the results of immune monitoring. Immune monitoring generally employs serological methods and, when necessary, may also involve challenging immunized poultry with virulent strains under labor
Insufficient vaccine dosage fails to stimulate an effective immune response in the body, while excessive dosage may lead to immune paralysis or toxic side effects. Therefore, vaccine dosage must strictly follow the product instructions.
