Background: TTV has been detected in almost every human tissue type or body fluid reaching near 100% prevalence. Several studies report mother-to-child postnatal transmission of TTV in infancy but the risk of transplacental transmission of TTV is still unclear. Methods: The blood and plasma collected postpartum from 100 mother-child pairs were analyzed using TTV-specific qPCR. Samples were collected from the peripheral vein of the mother and the umbilical cord. Results: Eighty four percent of pregnant women were TTV positive (median titers: 8 × 104 copies/mL; range: 103 - 3 × 107). The TTV load in plasma was approximately 100 times lower than in whole blood. TTV was not detected in any of cord blood samples. Conclusions: Our data demonstrate the lack of transplacental transmission of TTV (or effective prenatal inhibition of viral proliferation). The presence of the virus in infants may be associated with mother-to-child transmission through breast feeding or other routes of transmission.
CITATION STYLE
Tyschik, E. A., Shcherbakova, S. M., Ibragimov, R. R., & Rebrikov, D. V. (2017). Transplacental transmission of torque teno virus. Virology Journal, 14(1). https://doi.org/10.1186/s12985-017-0762-0
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