The usual route of infection for Brucella abortus in cattle is through the:
Correct answer: B. Digestive or genital mucosa
- A. Respiratory mucosa
- B. Digestive or genital mucosa
- C. Intact skin surface
- D. Central nervous system
Explanation
Brucella abortus commonly enters through the digestive or genital mucosa, especially after contact with contaminated fetal membranes, fluids, milk, or reproductive materials. Intact skin is not the usual route of natural infection.
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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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