This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Diseases under surveillance by WHO under International Health Regulations are all, EXCEPT: 
Select and explain. 
A. Louse borne typhus fever, B. Malaria, C. Small pox, D. Leprosy
D: Leprosy
Answer: D: Leprosy 
Explanation: Diseases under surveillance by WHO under International Health Regulations are: Anthrax An influenza Coronavirus infections Crimean-Congo haemorrhagic fever (CCHF) Dengue/dengue haemorrhagic fever Ebola haemorrhagic fever Hendra Virus (HeV) Infection Hepatitis Influenza Lassa fever Marburg haemorrhagic fever Meningococcal disease Human Monkeypox (MPX) Nipah Virus (NiV) Infection Pandemic (H1N1) 2009 Plague Rift Valley fever Severe Acute Respiratory Syndrome (SARS) Smallpox Tularaemia Yellow fever Ref: Park's textbook of Preventive and Social Medicine, 21st edition, page-110 ;