TABLE 1.
Toxoplasma gondii IgA and IgM antibody test results compared to AC/HS and IgG avidity results in pregnant womena
| Result(s) for individual serum samples (no. of samples) | No. (%) of women |
|||||
|---|---|---|---|---|---|---|
|
AC/HS assay
|
Avidity assay
|
|||||
| Total | A (%) | NA (%) | Total | L (%) | H (%) | |
| IgA (+) (90) | 89 | 67 (75.3) | 22 (24.7) | 89 | 74 (83.1) | 15 (16.8) |
| IgA (−) (600) | 502 | 44 (8.7) | 458 (91.2) | 203 | 74 (36.5) | 129 (63.5) |
| IgM (+) (258) | 237 | 94 (39.6) | 143 (60.3) | 194 | 124 (63.9) | 70 (36.1) |
| IgM (−) (432) | 354 | 17 (4.8) | 337 (95.2) | 98 | 24 (24.5) | 74 (75.5) |
| IgM (+), IgA (+) (80) | 79 | 62 (78.5) | 17 (21.5) | 79 | 69 (87.3) | 10 (12.6) |
| IgM (+), IgA (−) (178) | 158 | 32 (20.2) | 126 (79.7) | 115 | 55 (47.8) | 60 (52.2) |
| IgM (−), IgA (+) (10) | 10 | 5 (50) | 5 (50) | 10 | 5 (50) | 5 (50) |
| IgM (−), IgA (−) (422) | 344 | 12 (3.5) | 332 (96.5) | 88 | 19 (21.6) | 69 (78.4) |
a
(+), positive; (−), negative; A, acute; NA, nonacute or equivocal pattern; L, low or equivocal; H, high.