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9148 Microbiology

IgA antibody is the first line of defense against infections at the mucous membrane. It is usually an early specific antibody. Which of the following statements regarding IgA is not true?

AComplement fixation tests for IgA antibody will be positive if specific IgA antibody is present
BIgA is not found in saliva, therefore an IgA diagnostic test on saliva would have no value
CIgA can be destroyed by bacterial proteases
DIgA is absent in colostrum
Microbiology
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