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).
Thallium has 25 isotopes which have atomic masses that range from 184 to 210. 203 Tl and 205 Tl are the only stable isotopes, and 204 Tl is the most stable radioisotope, with a half-life of 3.78 years.205 Tl represents the final decay product of the 4n+1 decay chain (also known as the neptunium series).hallium is found in the minerals crookesite TlCu 7 Se 4, hutchinsonite TlPbAs 5 S 9, and lorandite TlAsS 2. Thallium also occurs as a trace element in iron pyrite, and thallium is extracted as a by-product of roasting this mineral for the production of sulfuric acid.