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.
The Variola virus is a double-stranded DNA virus. It has two envelopes: the outer envelope is present only in the extracellular state. The outer surface or the core membrane, which surrounds the core of the virus, contains lipids and proteins and has a complex symmetry.he only other choice is prevention through the use of the vaccine (Mayo, 2002). The smallpox vaccine is a live vaccine, derived from the vaccinia virus. The vaccine does not contain or cause a variola infection.