This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Perinatal prevention of mother to child, which of the following steps are useful - 
Select and explain. 
A. Cleaning mothers vagina with antiseptic lotion, B. Elective Caesarian section, C. Avoid breast feeding, D. A prophylaxis
D: A prophylaxis
Answer: D: A prophylaxis 
Explanation: Ans. is 'd' i.e., Blood transfusion "Children usually acquire infection indirectly, through parenteral route from hepatitis B contaminated blood transfusion". Other modes of transmission in children : - i) Sharing of contaminated hypodermic needles used for multiple doses of infection. ii) Shaving razors. iii) Sexual contact Adolescent boy & girls.