Description : Small Pox is caused by - (1) Rubeola Virus (2) Variola Virus (3) Varicella (4) Myxovirus
Last Answer : (2) Variola Virus Explanation: Smallpox was an infectious disease unique to humans, caused by either of two virus variants, Variola major and Variola minor. The disease is also known by the ... diseases to have been eradicated, the other being rinderpest, which was declared, eradicated in 2011.