Table of Contents
ISRN Obstetrics and Gynecology
Volume 2012, Article ID 975135, 5 pages
Clinical Study

The Prevalence of Human T-Cell lymphotropic Virus Type 1 in Pregnant Women and Their Newborns

1Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 9137119139, Iran
2Women Health Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 9185779613, Iran
3Microbiology and Virology Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 9176699199, Iran
4Department of Biostatistics, Islamic Azad University, Mashhad Branch, Mashhad 9176699199, Iran

Received 27 July 2012; Accepted 30 September 2012

Academic Editors: D. Chen and C. Iavazzo

Copyright © 2012 A. Hamedi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The prevalence of HTLV1 virus antibodies was determined in pregnant women and their neonates in Mashhad, northeast of Iran, as shown in this prospective cross-sectional study. 407 women who were hospitalized for delivery participated in this study. Venous blood sampling of pregnant women and umbilical cord of their neonates was done. The first samples of all women were tested for HTLV1 seropositivity by ELISA test and confirmed by PCR method. Then, the presence of HTLV1 in samples of umbilical cords blood in neonates who were delivered to an HTLV1-positive mother was determined by PCR method. All HTLV1-positive infants were called again at the age of 9–12 months, and PCR test was done using HTLV1-specific primers for them. Of all the participating women, 6 persons were HTLV1 seropositive by ELIZA test which was confirmed by PCR test. HTLV1 antibodies were found in cord blood samples by PCR test in 6 newborns who were born to HTLV1-seropositive women. All the six infants at the age of 9–12 months showed positive PCR results by HTLV1 LTR-specific primers; however, only one of them was PCR positive using HTLV1 TAX-specific primers. The prevalence of HTLV1 antibodies in pregnant women was 1.5%, and the vertical transmission rate to their neonates was 16.6%.