WHO declared that smallpox has been eradicated in: (A) Jun-92, (B) Dec-00, (C) May-80, (D) Jan-85
Answer is C. Smallpox is an acute contagious disease caused by the variola virus, a member of the ohopoxvirus family. It was one of the world&;s most devastating diseases known to humanity. The last known natural case was in Somalia in 1977. It was declared eradicated in 1980 following a global immunization campaign led by the World Health Organization.