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: Social & Preventive Medicine
[{'content': 'Veical transmission is by - \nSelect and explain. \nA. Mosquitoes, B. Direct contact, C. Droplet, D. Placenta', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Placenta Modes of transmission o Communicable disease may be transmitted from the reservoir or source of infection to a susceptible host in many different ways. Modes of transmisstion Direct transmission Indirect transmission Direct contact o Vehicle - borne Droplet infection o Vector - borne Contact with soil o Air - borne Inoculation into skin or mucosa o Fomite - borne Transplacental (veical) o Uncleaned hands & fingers", 'role': 'assistant'}]