This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'Post-exposure immunization is done for \nSelect and explain. \nA. Measles, B. Polio, C. Rabies, D. Chicken pox', 'role': 'user'}, {'content': "Answer: A \nExplanation: *MMR vaccine if administrate within 72 hours of exposure or immunoglobulin if administrate within 6 days of exposure provide some protection or modify the clinical course of disease. Measles vaccine Prepared in chick embryo cell line Thermolabile Injected subcutaneously Indication: Under national immunisation schedule of India , measles vaccine is given at 9 months of age along with vit A supplements. Side effects: Toxic shock syndrome ,mild measles like illness may develop in 15 -20% of vaccines. REF:Anantha Narayanan and paniker's textbook of microbiology 9th edition.", 'role': 'assistant'}]