This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Principles of Immunization and Vaccination, Subject name: Social & Preventive Medicine
[{'content': 'Live attenuated vaccine can be given to: \nSelect and explain. \nA. Children under 8 years, B. HIV patients, C. Patients on steroids, D. Patients on radiation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Children under 8 yearsRef.: K. Park 23rd ed. /103, 21st ed /28* Live vaccines are prepared from live (generally attenuated) organisms. Generally live vaccines are more potent then killed vaccines . In case of administration of live vaccines usually require single dose except polio vaccine which require 3 doses .* Live vaccines are usually contraindicated in persons with immunodeficiency disorders or persons with leukemia, lymphoma, malignancies, or because of therapy with alkylating agents, corticosteroids, radiotherapy, antimetabolite drugs.* Pregnancy is the another contraindication unless risk of infection exceeds the risk of harm to the fetus .', 'role': 'assistant'}]