<prompt> All of the following are WHO notifiable diseases EXCEPT:CholeraChicken poxPlagueYellow fever  <response>: 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. 