This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infectious Disease Epidemiology, Subject name: Social & Preventive Medicine
[{'content': 'Cluster testing is done in - \nSelect and explain. \nA. Malaria, B. AIDS, C. TB, D. Pneumonia', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., AIDSo Case detection is an essential part of any control programme. The usual methods of early detection in a STD control programme are :ScreeningContact tracing: Sexual partners of diagnosed cases are identified, located, investigated and treated. It is one of the best method of controlling the spread of infection.Cluster testing : Screening of all persons of either sex, wrho move in the same socio-sexua! environment as the pateint.", 'role': 'assistant'}]