This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
Burden of disease is detected by 
Select and explain. 
A. DALY, B. Sullivan's Index, C. IMR, D. Survival index
A: DALY
Answer: A: DALY 
Explanation: Disability Adjusted Life Years (DALY) is a measure of overall disease burden expressed as a number of years lost due to ill health, disability or early death. Ref: 25th edition Park&;s Textbook of Preventive and Social Medicine, Page no. 26