Open Access
Table 1
IgG cut-off values recommended by the manufacturers.
| Assays/system | Technique | WHO IS | Negative | Gray zone | Positive |
|---|---|---|---|---|---|
| Elecsys/Cobas 8000 | ECLIA recombinants SAG1 (P30) | 3rd sera (TOXM) | <1 | 1 ≤ x < 30 | ≥30 |
| Architect/i2000 | CMIA recombinants SAG1 (P30) GR8 | 1st IgG (01/600) | <1.6 | 1.6 ≤ x < 3 | ≥3 |
| Platelia/Evolis | ELISA inactivated T. gondii | 3rd sera (TOXM) | 6 | 6 ≤ x < 9 | ≥9 |
| Access II/Access | CLIA inactivated T. gondii | 3rd sera (TOXM) | <7.5 | 7.5 ≤ x < 10.5 | ≥10.5 |
| TGS TA/IDS-iSYS | CLIA purified T. gondii | Unknown | <1.5 | ≥1.5 | |
| Vidas II/Mini Vidas | ELFA inactivated T. gondii | 2nd sera (TOXS) | <4 | 4 ≤ x < 8 | ≥8 |
| Liaison II/Liaison XL | CLIA inactivated T. gondii | 2nd sera (TOXS) | <7.2 | 7.2 ≤ x < 8.8 | ≥8.8 |
| LDBio II | WB P30 P31 P33 P40 P45 | NA | <3 bands or no 30 kDa band | ≥3 bands including the 30 kDa band |
WHO IS, World Health Organization International Standard; NA, not available.
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