MANA 445 Lecture Notes - Lecture 6: Immunodeficiency, Biological Hazard, Legionella
18 Dec 2018
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Learning objectives: to define the numerous terms relating to chemical and biological agents, to discuss the management of chemical and biological agents, to outline the actions of chemical and biological agents on human physiology, to outline control mechanisms. Biological agents: natural organisms or products of organisms that present a risk to humans, diseases resulting from biological agents include: Legionnaires" desease: legionnaires" disease is a severe form of pneumonia - lung inflammation usually caused by infection. Legionnaires" disease is caused by a bacterium known as legionella. You can"t catch legionnaires" disease from person-to-person contact. Instead, most people get legionnaires" disease from inhaling the bacteria. Toxicity: ability to cause injury to human biological tissue. Toxicology: scientific study of poisons, study of chemical-related occupational illnesses. Chemicals enter body by one of four routes of entry: respiration (inhalation, skin absorption. Most human exposure to chemicals comes from breathing airborne contaminants. Five basic levels of protection within respiratory tract: nose.
