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
WHO declared global eradication of small pox on ? 
Select and explain. 
A. 26th October 1977, B. 5th July 1975, C. 17th May 1975, D. 8th May 1980
D: 8th May 1980
Answer: D: 8th May 1980 
Explanation: Ans. is 'd' i.e., 8th May 1980 The world's last case of smallpox occurred in somalia on 26 October 1977 (Apa from a laboratory accident in 1978). The WHO declared on 8 may 1980 that smallpox had been eradicated. India The last indigenous case in India occured on 17 May 1975 in Bihar. On 24 May 1975, India's last known case of smallpox, an impoation from Bangladesh occured. In April 1977, India was declared smallpox free by an International Commission for Assessment of smallpox eradication.