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
In all of the following diseases chronic carriers are found except 
Select and explain. 
A. Gonorrhea, B. Measles, C. Typhoid, D. Hepatitis B
B: Measles
Answer: B: Measles 
Explanation: Chronic carriers: A carrier who excretes bacilli for indefinite periods of time
– Typhoid – Dysentery
– Hepatitis B – Cerebrospinal meningitis
– Malaria – Gonorrhoea
There are no carriers in Measles