This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
Veical transmission rate in hepatitis C is 
Select and explain. 
A. 5%, B. 10%, C. 25%, D. 50%
A: 5%
Answer: A: 5% 
Explanation: Veical transmission refers to viral transmission from the mother to the infant during pregnancy, at the time of delivery, or during the first 28 days after bih. In most infants, HCV RNA levels only become detectable several weeks after bih, suggesting perinatal infection Approximately 5% of pregnant women with chronic HCV infection will transmit the virus to their infants Ref Harrison20th edition pg 980