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
Carrier state is seen in following, except: 
Select and explain. 
A. Diphtheria, B. Measles, C. Typhoid, D. Polio
B: Measles
Answer: B: Measles 
Explanation: Measles