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Visna-maedi virus. The human immunodeficiency viruses ( HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), [1] [2] a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. [3]
Henrietta Lacks. Henrietta Lacks (born Loretta Pleasant; August 1, 1920 – October 4, 1951) [1] was an African-American woman [4] whose cancer cells are the source of the HeLa cell line, the first immortalized human cell line [A] and one of the most important cell lines in medical research. An immortalized cell line reproduces indefinitely ...
- Loretta Pleasant, August 1, 1920, Roanoke, Virginia, U.S.
- October 4, 1951 (aged 31), Baltimore, Maryland, U.S.
Lead is a chemical element; it has symbol Pb (from Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead ...
- metallic gray
- group 14 (carbon group)
- 82
Corinne Miller – a year of probation, 300 hours of community service, and fine of $1,200. [6] The Flint water crisis was a public health crisis that started in 2014 after the drinking water for the city of Flint, Michigan was contaminated with lead and possibly Legionella bacteria. [2] In April 2014, during a financial crisis, state-appointed ...
- 12 fatalities
- April 25, 2014 – February 1, 2019
- 2014–2019
- Flint, Michigan, United States