This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chicken Pox, Subject name: Social & Preventive Medicine
All of the following are WHO notifiable diseases EXCEPT: 
Select and explain. 
A. Cholera, B. Chicken pox, C. Plague, D. Yellow fever
B: Chicken pox
Answer: B: Chicken pox 
Explanation: Ans. (b) Chicken poxRef : K. Park 23rd ed. /143, 841, 21sted. 1780* The following diseases are notifiable to WHO in Geneva:# Cholera# Plague# Yellow fever* In addition to these a few others like: Louse borne typhus, relapsing fever, Polio, Influenza, malaria, rabies and salmonellosis are subject to international surveillance.