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
Point source epidemic tends to- 
Select and explain. 
A. Continue over one incubation period, B. Produce multiple peaks in the epidemic curve, C. Be explosive, D. Tail gradually
C: Be explosive
Answer: C: Be explosive 
Explanation: .point source epidemic tends to be explosive,there is clustering of cases within a narrow interval of time.and all the cases develop within one incubation period of disease.when we consider the epidemic curve,it rises and falls rapidly with no secondary waves. ref:park&;s textbook ,22 nd edition,pg no 62