A pregnant woman was registered in an antenatal clinic and underwent complex examination for a number of infections. Blood serum contained IgM to the rubella virus. What is this result indicative of?

Question

Answer options

Of exacerbation of a chronic disease
Of recurring infection with rubella virus
Of a chronic process
The woman is healthy
Of primary infection

Correct answer

Of primary infection

Explanation

A high IgM level usually indicates an acute or primary infection and also the first antibody to appear in response to initial exposure to an antigen. Secondary or reinfection show an increase in IgG.

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