Open Access
Research Article

Table 1.

Avidity data from Architect and Vidas assays according to the estimated date of infection established by IgG Vidas/IgG Architect ratio and IgM and IgA tests results.

Architect avidity
Vidas avidity
High n = 63 Gray zone n = 17 Low n = 37 High n = 76 Gray zone n = 14 Low n = 27
Group AI < 4, n = 17 0 0 17 0 1 16
Group CI > 4 TBC, n = 9 0 1 8 0 4 5
Group CI > 4, n = 91 63 16 12 76 9 6

Group AI < 4: maternal infection acquired within 4 months before date of sampling; Group CI > 4 TBC: chronic maternal infection older than 4 months to be confirmed (TBC); Group CI > 4: chronic maternal infection older than 4 months.

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