A positive titer (> or = 1:4) by anticomplement immunofluorescence (ACIF) indicates a history of Varicella-Zoster virus infection or vaccination. This antibody is usually detectable within 2 days after the onset of rash and is, thereafter, detectable for life. Conversely, the absence of detectable antibody can be used as evidence of susceptibility to varicella (chickenpox).
Reported (Analytical Time)
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ACIF: Anticomplement Immunofluorescence Transport Temperature: Room Temperature