Question

Diseases like polio and small pox are under control these days due to advancements in

Answer 1

Smallpox. Smallpox is the only human disease that has been successfully eradicated. Smallpox, an infectious disease caused by the variola virus was a major cause of mortality in the past, with historic records of outbreaks across the world. ... The smallpox vaccine was the first successful vaccine to be developed.