Open Access

Table 1

Results of IgM detection with Toxo-ISAGA IgM®, Liaison Toxo IgM®, Architect/Alinity Toxo IgM®, Vidas Toxo IgM®, and Platelia Toxo IgM® assays on 1,341 adult sera with negative IgG and positive IgM by at least one test.

Clinical status Assay Number of samples with the following result
Negative Equivocal Positive
Recent Toxoplasma infection (seroconversion) Toxo-ISAGA IgM® (n = 156) 2 (1.3%) 5 (3.2%) 149 (95.5%)
Liaison Toxo IgM® (n = 96) 9 (9.4%) 6 (6.2%) 81 (84.4%)
Architect/Alinity Toxo IgM® (n = 47) 2 (4.2%) 2 (4.2%) 43 (91.5%)
Vidas Toxo IgM® (n = 11) 2 (18.2%) 2 (18.2%) 7 (63.6%)
Platelia Toxo IgM® (n = 18) 1 (5.5%) 1 (5.5%) 16 (88.9%)
Absence of Toxoplasma infection (nonspecific IgM) Toxo-ISAGA IgM® (n = 1,185) 877 (74.0%) 154 (13.0%) 154 (13.0%)
Liaison Toxo IgM® (n = 788) 719 (91.2%) 31 (3.9%) 38 (4.8%)
Architect/Alinity Toxo IgM® (n = 366) 221 (60.4%) 22 (6.0%) 123 (33.6%)
Vidas Toxo IgM® (n = 67) 48 (71.6%) 3 (4.5%) 16 (23.9%)
Platelia Toxo IgM® (n = 41) 10 (24.4%) 1 (2.4%) 30 (73.2%)

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