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
Which disease comes under International Surveillance? 
Select and explain. 
A. Typhoid fever, B. Salmonellosis, C. Chikungunya fever, D. Hepatitis B
B: Salmonellosis
Answer: B: Salmonellosis 
Explanation: 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