This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Most common viral disease affecting parotid glands 
Select and explain. 
A. Mumps, B. Measles, C. Rubella, D. varicella
A: Mumps
Answer: A: Mumps 
Explanation: Mumps is characterised by non suppurative enlargement and tenderness of one or both the parotid glands Reference: Park&;s Textbook of Preventive and Social medicine; 24th edition; Page no.162