Why can maternal antibodies reduce the effectiveness of some vaccines in young animals?
Correct answer: A. They neutralize vaccine antigens before immune priming
- A. They neutralize vaccine antigens before immune priming
- B. They destroy the animal's lymph nodes
- C. They permanently block antibody production
- D. They convert live vaccines into bacterial toxins
Explanation
Passively acquired maternal antibodies may bind and neutralize vaccine antigens before the young animal mounts an adequate active immune response. This interference is temporary and declines as maternal antibodies are naturally catabolized.
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About Veterinary Microbiology and Immunology
Covers the structure, classification, growth and transmission of bacteria, viruses, fungi and other disease causing microorganisms in animals. It explains innate and acquired immunity, antibodies, antigens, vaccination, hypersensitivity and diagnostic methods, while distinguishing infectious agents from the immune responses they produce.
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