Granulocyte donor WNV infectious disease test results
| Sample type . | Collection date . | WNV RNA TMA S/CO* . | WNV IgM S/CO† . | WNV IgG S/CO . | WNV RNA by PCR in copies/mL‡ . |
|---|---|---|---|---|---|
| Index donation | 8/9/10 | 29.53 | NT | NT | 700 |
| Index retention | 8/9/10 | 33.79 | < 0.67 | < 1.30 | 3600 |
| Follow-up | 10/18/10 | 0.02 | 4.73 | 3.74 | < 5 |
| Sample type . | Collection date . | WNV RNA TMA S/CO* . | WNV IgM S/CO† . | WNV IgG S/CO . | WNV RNA by PCR in copies/mL‡ . |
|---|---|---|---|---|---|
| Index donation | 8/9/10 | 29.53 | NT | NT | 700 |
| Index retention | 8/9/10 | 33.79 | < 0.67 | < 1.30 | 3600 |
| Follow-up | 10/18/10 | 0.02 | 4.73 | 3.74 | < 5 |
TMA indicates transcription-mediated amplification; S/CO, signal-to-cutoff; PCR, polymerase chain reaction; and NT, not tested.
TMA was done using the Gen-Probe/Novartis WNV assay on the TIGRIS automated platform. S/CO ratios of 1.00 or greater indicate a reactive test result.
Antibody testing (IgM and IgG) was performed by Focus Laboratories. S/CO ratios of 0.67 or greater for IgM and 1.30 or greater for IgG indicate a positive test result.
PCR testing was performed by National Genetics Institute using a quantitative assay with a 95% lower limit of detection of 5 copies per milliliter.