This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
Killed vaccine is 
Select and explain. 
A. Hepatitis A, B. Measles, C. OPV, D. BCG
A: Hepatitis A
Answer: A: Hepatitis A 
Explanation: Hepatitis vaccine-2 types Formaldehyde inactivated vaccine Live attenuated vaccine -administered as a single subcutaneous dose (refer pgno:212 park 23 rd edition)