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
An infectious disease shows the Iceberg phenomenon. This means it has 
Select and explain. 
A. More case fatality rate, B. More SAR, C. More subclinical cases, D. More complications
C: More subclinical cases
Answer: C: More subclinical cases 
Explanation: Iceberg phenomenon - it gives the spectrum of disease in a community Visible pa - denotes clinically apparent cases of disease in the community Pa below the water- denotes the latent, subclinical and undiagnosed cases in the community Some diseases exhibiting Iceberg phenomenon Diabetes Hypeension Malnutrition Ref: 25th edition Park's Textbook of Preventive and Social Medicine, Page no. 46