<prompt> Complete interruption of transmission of a disease in a geographical area , though organism is still persisting in the environment is known as:-ControlEliminationEradicationTearing out by roots  <response>: Disease elimination is complete interruption of transmission of disease in a defined geographical area, but the causative organism may be persisting in the environment. Disease elimination is a geographical term i.e. can be used only for a country region India has eliminated 4 diseases till date: 1.Guinea worm : February 2000 2.Leprosy: December 2005 3.Yaws: July 2016 4. Maternal Neonatal Tetanus : July 2016 Disease control -- reducing transmission of disease agent to such a low level that it ceases to be a public health problem. Disease eradication -- complete extermination of organism tearing out by roots World has eradicated ONLY 1 disease till date: Small pox declared eradicated on 8 May, 1980 