Toxoplasma IgM, ELISA, Serum
Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
IgM-ELISA: (serum) negative 0.0 - 1.6, equivocal 1.7 - 1.9, >=2.0
positive; (CSF) negative 0.0 - 0.3; positive >=0.4. A negative IgM-
ELISA result in an immunologically normal adult almost always
excludes recent infection. IgM antibodies may persist for one year
or longer following acute infection.
Test Performed by: Palo Alto Medical Foundation
Toxoplasma Serology Laboratory
Research Institute, Ames Building
795 El Camino Real
Palo Alto, CA94301