The floating mountains of Pandora are one of features of The World of Avatar, opening May 27 at Disneyâs Animal Kingdom. On the Naâvi River Journey, guests will ride in canoes on a sacred river through a bioluminescent rainforest ending with an encounter with a Naâvi shaman.
1 Types: Variola major, or smallpox, has a death rate of 30%. 2  Variola minor, or alastrim, is a milder form of the virus with a death rate of 1%. 3  Four types of variola exist: classic, hemorrhagic, malignant, and modified.
Variola virus, the cause of smallpox, is a member of the family Poxviridae, subfamily Chordopoxvirinae, genus Orthopoxvirus. In addition to Variola virus, the genus includes vaccinia (the component of modern day smallpox vaccine), monkeypox, camelpox, cowpox, and other viruses that are antigenically related.ariola virus, the cause of smallpox, is a member of the family Poxviridae, subfamily Chordopoxvirinae, genus Orthopoxvirus. In addition to Variola virus, the genus includes vaccinia (the component of modern day smallpox vaccine), monkeypox, camelpox, cowpox, and other viruses that are antigenically related.