Background. Smallpox is an acute, contagious disease caused by the variola virus, a member of the genus Orthopoxvirus, in the Poxviridae family (see the image below).Virologists have speculated that it evolved from an African rodent poxvirus 10 millennia ago.ackground. Smallpox is an acute, contagious disease caused by the variola virus, a member of the genus Orthopoxvirus, in the Poxviridae family (see the image below).
Most of the time in Western Australia and the Middle East. There is pure talc in the European Alps and the Himalayas. 4 people found this useful. Edit. Share to: 1  The Five Major Parts of the Brain At its most basic, the brain controls the body. 2  Electrical impulses are sent along the nervous system to and from the brain that regulate all movement.
The National Toxicology Program (NTP) deferred consideration of listing Talc in its Report on Carcinogens after a review in 2000 found considerable confusion over the mineral nature and consequences of exposure to Talc, both containing asbestiform fibers and not containing asbestiform fibers.