[Viral hepatitis delta in the republic of Belarus].

26,740 blood donors and persons of high risk groups with respect to HBV infection, residing in different regions of Belarus, were examined for the presence of HBsAg in 1983-1997. Of these, 1372 persons (5.1%) were found to have HBsAg, and out of 1081 HBsAg-positive persons anti-HDV antibodies (Ab) were detected in 96 persons (8.

[Effect of umbilical cord pathology on the outcome of labor].

Literature and the authors' evidence concerning effects of umbilical abnormality on maternal and fetal outcomes has been overviewed. It is emphasized that identification of umbilical abnormality during labor and delivery, but not only during pregnancy, will improve obstetric outcomes.