Gynaecology & Obstetrics Highest transmission of hepatitis B from mother to fetus occurs if the mother is infected during which phase of the pregnancy? A Ist trimester B IInd trimester C IIIrd trimester D At the time of implantation 💡 Explanation Highest transmission of hepatitis B from mother to fetus occurs if the mother is infected during which phase of the pregnancy? ✓ Correct Answer: C. IIIrd trimester