TABLE 1.
Parvovirus B19 serologic status and parvovirus B19 PCR of the recipient and donor at different times after transplantation.
| Variable | Parvovirus B19 specific analyses |
|||
| IgG indexa | IgM indexa | PCRb | PCR 1:100b | |
| Donor | ||||
| Day 0 | Positive (16)c | Negative (0.1)c | Negativec | |
| Recipient | ||||
| Day 0 | Negative (<0.1)c | Negative (<0.1)c | Negativec | |
| Day 8 | Negative (<0.1)c | Negative (<0.1)c | Negativec | |
| Day 22 | Negative (<0.1)c | Positive (10.0)c | Inconclusivec | Positive c |
| Day 31 | Positive (26.0)c | Positive (16.0)c | Positive c | |
| Day 37 | Positive (29.0)c | Positive (8.4)c | Positive c | |
| Day 50 | Positive (29.0)c | Positive (2.1)c | Positive c | Negativec |
| Day 99 | Positive (8.8)c | Negative (0.1)c | Positive c | Negativec |
| Day 148 | Positive (3.2)c | Negative (<0.1)c | Positive c | Negativec |
| Day 180 | Negative (<0.1)c | Positive (4.9)c | Inconclusivec | Positive c |
| Day 190 | Negative (<0.1)c | Positive (3.2)c | Inconclusivec | Positive c |
| Day 206 | Negative (<0.1)c | Positive(2.9)c | Inconclusivec | Positive c |
| Day 283 | Negative (<0.1) | Equivocal (0.9) | Inconclusive | Positive c |
| Day 303 | Negative (<0.1) | Negative (0.3) | Inconclusive | |
| Day 325 | Negative (<0.1) | Equivocal (0.7) | Inconclusive | Positive d |
| Day 340 | Positive (42.0) | Equivocal (1.1)c | Positive | |
| Day 401 | Positive (3.4) | Negative (0.4)c | Positive | |
| Day 445 | Equivocal (1.0) | Negative (0.3)c | Positive | |
| Day 485 | Negative (0.2) | Positive (3.0) | Inconclusive | Positive |
| Day 520 | Positive (13.0) | Equivocal (0.9)c | Positive | |
| Day 591 | Negative (0.2) | Weak positive (1.6) | Inconclusive | Positive |
| Day 645 | Positive (6.2) | Equivocal (1.2)c | Positive | |
| Day 709 | Positive (6.5) | Negative (0.4) | Positive | |
| Day 753 | Weak positive (2.0) | Equivocal (0.8)c | Positive | |
| Day 813 | Negative (0.6) | Equivocal (0.7)c | Positive | |
| Day 1118 | Positive (19.0) | Positive (2.2) | Positive | |
| Day 1366 | Positive (23.0) | Equivocal (1.3) | Positive | |
aLIAISON® Biotrin Parvovirus B19 IgG, IgM (DiaSorin).
bIn-house accredited PCR assay with primers and probes, which target the VP2 gene of the Parvovirus B19, performed undiluted and diluted 1:100.
cRetrospectively analyzed.
dPCR confirmed positive using another method and laboratory. Inconclusive results, such as negative PCR and internal control, for example, inhibitory factors may affect the results.