الفهرس 
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Abstract
1-The diagnostic efficiency for antigen of viral hepatitis C was evaluated in serum sample of patients with chronic hepatitis C with sensitivity (94.7%) and specificity (100%) respectively by using ELISA technique
2-The HCV-NS4 antigen was identified in serum and umbilical cord of their newborns at 27 kDa using Western techniques.
. and Vertical transmission of HCV-NS4 antigen was 100%
And The mode of delivery affect on the vertical transmission of HCV antigen; the detection rate of HCV-NS4 antigen in serum and cord samples in cesarean delivery was higher than vaginal delivery without significant difference.