It isn't very good.: mostly because most people will be at least somewhat positive on it (from prior oral infection in childhood). If you're negative, the test is more likely to be helpful and repeatedly negative to BOTH IgM AND IgG mean you don't have it.
Answered 7/27/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
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2 doctors weighed in across 2 answers
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