TABLE 3.
Performance of the IMFA with sera displaying an equivocal EBV-specific antibody profile (VCA IgG+, VCA IgM+, EBNA-1 IgG+)
| Serum no. | Presence of HA | IMFA result | VCA IgG avidity (%) | Presence of EBV DNA in serum |
|---|---|---|---|---|
| 1 | − | − | 96 | − |
| 2 | − | − | 75 | − |
| 3 | − | − | 100 | − |
| 4 | − | − | 81.5 | − |
| 5 | − | − | 75 | − |
| 6 | − | W+a | 7 | − |
| 7 | − | W+ | 91.6 | − |
| 8 | − | − | 100 | − |
| 9 | − | − | 100 | − |
| 10 | − | W+ | 33 | − |
| 11 | − | W+ | 68 | − |
| 12 | − | W+ | 87.7 | − |
| 13 | − | W+ | 97.3 | − |
| 14 | − | W+ | 82 | − |
| 15 | − | W+ | 56.5 | − |
| 16 | + | + | 17.8 | + |
| 17 | + | + | 39.3 | + |
| 18 | + | W+ | 12.39 | + |
| 19 | − | W+ | NDb | + |
| 20 | − | W+ | ND | + |
a
W+, weakly positive.
b
ND, not done.