TABLE 3.
Detection of anti-flavivirus antibodies in CSF
| Specimen no. | MFI of CSF diluted 1:2 in:
|
Viral etiology by PRN assaysc | |
|---|---|---|---|
| PBSa (IgG + IgA + IgM) | GullSORBb (IgM) | ||
| 1 | 909 | 932 | WN virus, UT |
| 2 | 1,632 | 1,050 | WN virus, C or R |
| 3 | 3,838 | 3,783 | WN virus, UT |
| 4 | 1,629 | 634 | WN virus, UT |
| 5 | 2,778 | 2,114 | WN virus, UT |
| 6 | 15,746 | 7,308 | WN virus, UT |
| 7 | 4,496 | 4,879 | WN virus, C or R |
| 8 | 1,240 | 1,488 | WN virus, C or R |
| 9 | 390 | 39 | WN virus, UT |
| 10 | 196 | 217 | WN virus, UT |
| 11 | 1,142 | 913 | DEN virus, UT |
| 12 | 4,066 | 3,150 | DEN virus, UT |
| 13 | 4,421 | 3,287 | FLAVI, UT |
| 14 | 589 | 217 | FLAVI, UT |
| 15 | 9,244 | 9,040 | FLAVI, UT |
a
For 100 beads with polyvalent conjugate
b
For 100 beads following IgG depletion
c
UT, undetermined time of infection; C or R, current or recent infection; FLAVI, indeterminate flavivirus.