This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Transplacental transmission is not seen in 
Select and explain. 
A. HIV, B. Varicella, C. Hepatitis A, D. Hepatitis B
C: Hepatitis A
Answer: C: Hepatitis A 
Explanation: HEPATITIS A Causative agent Enterovirus 72 (Picorna Virus) Incubation period 15-45 days Period of infectivity 2 weeks before to 1 week after onset of jaundice Sex distribution Equal in both sexes Children: More infected but mild or subclinical Reservoir Human cases Modes of transmission Fecal oral (Most common) Parenteral Sexual Disinfectant Formalin UV rays Boiling for 5 min Autoclaving Ref: Park 25th edition Pgno : 230-235