A physician suspects infection by the West Nile virus.He decides to test for immunoglobulin M (IgM).When are these antibodies first detectable after symptom onset?

Question

Quizplus · Accepted Answer

IgM antibodies are only detectable eight days after symptom onset of West Nile virus. There may be a negative result from a blood sample obtained before the eighth day after symptom onset.

A Physician Suspects Infection by the West Nile Virus