Smallpox is an infectious disease. Smallpox is an acute contagious disease caused by Variola virus, it is a member of the orthopoxvirus family. It was one of the world's most feared diseases until it was eradicated by a collaborative global vaccination programme led by the World Health Organization. (www.who.int/emc/diseases/smallpox/)Although there has been no recent accounts of it that doesn't mean that is not important. Smallpox is highly contagious as well as infectious it has no specific treatment and the only prevention is vaccination. …
