In an indirect enzyme-linked immunosorbent assay, the test is primarily used to detect:
Correct answer: C. Antibody in the serum sample
- A. Viral shape by microscopy
- B. Bacterial motility in culture
- C. Antibody in the serum sample
- D. Antibiotic concentration in tissues
Explanation
An indirect ELISA commonly detects antibodies in a serum sample by using an enzyme-labelled secondary antibody. It differs from a direct ELISA, which commonly detects antigen with a labelled primary antibody.
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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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