Table. Results of PCR for severe acute respiratory syndrome coronavirus 2 in a pregnant woman and fetus, Brazil, 2020*.
| Sample | Day | Cycle threshold† |
||
|---|---|---|---|---|
| ORF1ab | N | RNaseP‡ | ||
| Maternal nasopharyngeal swab sample | 0 | 21.0 | 24.0 | 23.0 |
| Maternal nasopharyngeal swab sample | 4 | 20.9 | 24.8 | 29.9 |
| Umbilical cord blood | 8 | 31.9 | 30.3 | 27.0 |
| Placenta§ | 8 | 24.5 | 25.5 | 25.6 |
| Fetal liver | 9 | Undetectable | Undetectable | 29.0 |
| Fetal spleen | 9 | Undetectable | Undetectable | 27.8 |
| Fetal lungs | 9 | Undetectable | Undetectable | 25.7 |
| Fetal central nervous system | 9 | Undetectable | Undetectable | 29.4 |
| Fetal skeletal muscle | 9 | Undetectable | Undetectable | 26.5 |
| Fetal heart | 9 | Undetectable | Undetectable | 26.5 |
| Fetal ovary | 9 | Undetectable | Undetectable | 25.4 |
*PCR conducted using XGEN MASTER COVID-19 Kit (Mobius Life Science, Inc, https://mobiuslife.com.br). N, nucleocapsid protein gene; ORF, open reading frame. †Cycle threshold value is considered positive if both viral genes are <38. ‡PCR is selective for human RNaseP gene as a control for sample integrity. §Insufficient sample.