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
In a community, an increase in new cases denotes - 
Select and explain. 
A. Increase in incidence rate, B. Increase in prevalence rate, C. Decrease in incidence rate, D. Decrease in prevalence rate
A: Increase in incidence rate
Answer: A: Increase in incidence rate 
Explanation: ref: Park&;s 23rd edition pg 60 Increased incident rates shows that there is an increase in new cases of that paicular disease. Incidence rate is defined as the number of NEW cases occuring in a defined population during a specified period of time.