Table 1.
Study of the first sera positive for IgM but negative or equivocal for IgG by routine methods
| IBa | No. of sera with indicated result |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| IgG Platelia |
IgG Elecsys |
IgG IIF |
|||||||
| French recommendations |
Other country recommendations |
||||||||
| Negative (<6 IU/ml) | Equivocal (6–9 IU/ml) | Negative (<1 IU/ml) | Equivocal (1–30 IU/ml) | Negative or equivocal (<3 IU/ml) | Positive (≥3 IU/ml) | Negative (<6) | Positive (≥6) | Not done | |
| Positive | 24 | 2 | 4 | 22 | 6 | 20 | 14 | 12 | 0 |
| Negative | 12 | 1 | 8 | 5 | 11 | 2 | 11 | 1 | 1 |
a
IB results according to IgG routine methods and IgG-IIF.