There are currently ten species in this genus including the type species vaccinia virus. Diseases associated with this genus include smallpox, cowpox, horsepox, and monkeypox. The most famous member of the genus is variola virus, which causes smallpox.Variola was eradicated using vaccinia virus as a vaccine.rthopoxvirus is a genus of viruses in the family Poxviridae and subfamily Chordopoxvirinae.
Contaminants Fact Sheets. Top Water News. Thallium is a metal found in natural deposits as ores containing other elements. The greatest use of thallium is in specialized electronic research equipment. The following is a factsheet about the chemical that may be found in some public or private drinking water supplies. It may cause health problems if found in amounts greater than the health standard set by the United States Environmental Protection Agency (EPA).
About Thallium. Thallium is the heaviest member of Group 13 on the periodic table, a family that consists of the post-transition âpoor metals.â The element is a metal that has a low melting point and is extremely malleable, soft enough to be cut with a knife.he Thallium atom has a radius of 170.pm and its Van der Waals radius is 196.pm. In its elemental form, CAS 7440-28-0, thallium has a silvery white appearance. Thallium was first discovered by Sir William Crookes in 1861 and gets its name from the Greek word thallos which means twig or green shoot.