This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
[{'content': 'Which disease comes under International Surveillance? \nSelect and explain. \nA. Typhoid fever, B. Salmonellosis, C. Chikungunya fever, D. Hepatitis B', 'role': 'user'}, {'content': "Answer: B \nExplanation: Diseases under WHO surveillance Polio Rabies Relapsing fever Influenza Salmonellosis Malaria Louse born typhus Ref : Park's Textbook of Preventive and Social Medicine; 24th edition", 'role': 'assistant'}]