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': 'In a population of 2000, 20 cases had disease, out of which 5 had died. Case fatality rate of disease is ? \nSelect and explain. \nA. 5%, B. 10%, C. 25%, D. 50%', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 25% Total no. of death due to disease 5 CFR -_____________________________ x100 x 100 = 25% Total no. of cases of disease 20 In this case survival rate will be : Survival rate =1 - CFR =1 - 0.25 = 0.75 (75%)", 'role': 'assistant'}]