Table 4.

Specimens from pregnant women with documented intrauterine transmission of the virus tested by CMV IgM and CMV IgG avidity serologic testsa

CMV IgM screening assay results No. of specimens No. of specimens with following CMV IgM Immunoblot assay result:No. of specimens with following CMV IgG avidity index:
Positive Negative Low ModerateHigh ND
AxSYM+, Behring 7 7 0 4 1 0 2
AxSYM+, Behring+ 4 40 3 0 0 1
AxSYM, Behring 2 2 0 2 0 0 0
 Totalb 13 13 0 91 0 3
  • a ND, CMV IgG titer not sufficient to determine CMV IgG avidity index by the Radim CMV IgG avidity assay.

  • b Eleven specimens were AxSYM positive, and four were Behring positive.