This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other Key Definitions & Concepts, Subject name: Social & Preventive Medicine
A carrier who gets infected from another carrier is known as:- 
Select and explain. 
A. Incubatory carrier, B. Paradoxical carrier, C. Convalescent carrier, D. Pseudo carrier
B: Paradoxical carrier
Answer: B: Paradoxical carrier 
Explanation: Paradoxical carrier - A person gets infected from another carrier and himself becomes Carrier. Carriers are of 6 major types: Content carrier - Carrier gets infection from a case Paradoxical carrier - Carrier gets infection from another carrier Chronic carrier - Carrier for duration of more than 6 months Incubatory carrier - can transmit the agent during the incubation period before clinical illness begins. Convalescent carrier - can transmit the agent during recovery phase Pseudo carrier - asymptomatic carrier with avirulent organismsm.( no need to worry about it)