Volume 27, Number 2—February 2021
Research Letter
Intrauterine Transmission of SARS-CoV-2
Table
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.
1These first authors contributed equally to this article.
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Page updated: January 24, 2021
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