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': 'If the prevalene is very low as compared to the incidence for a disease, it implies - \nSelect and explain. \nA. Disease is very fatal and/or easily curable, B. Disease is nonfatal, C. Calculation of prevalence and incidence is wrong, D. Nothing can be said, as they are independent', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Prevalence is less than incidence\n1)\xa0Disease is very fatal\n\nMost of the cases die, so at the time of calculating prevalence the number is usually less than the incidence.\n\n2) Disease is very well curable either by rapid recovery or by treatment\n\nMost of the cases recover, so at the time of calculating prevalence the number is usually less than incidence.\n\nPrevalence is more than incidence\n1)\xa0Disease is not fatal but very chronic\n\nDue to increased duration, prevalence increases\n\n2)\xa0Treatment prevent death but does not cure\n\nDue to increased duration, prevalence increases.', 'role': 'assistant'}]