Additional Information

When equivocal results are obtained, another specimen should be
obtained 10 to 14 days later and tested in parallel with the
initial specimen. If the second specimen is also equivocal, the
patient is negative for primary or recent infection and equivocal
for antibody status. If the second sample is positive, the patient
can be considered to have a primary infection. The conversion of an
individual patient’s serum from negative to positive for
antibodies to the infectious agent in question is defined as
seroconversion and indicates active or recent infection.

Result will be reported as follows:

Negative:   below 13.5 AU/mL
Equivocal: between 13.5 and 16.5 AU/mL
Positive: Above 16.5 AU/mL

Use:  used to verify immunity to the measles (rubeola) virus.