BIOL 0510 Lecture Notes - Lecture 15: Waterborne Diseases, Typhoid Fever, Foodborne Illness
7 Nov 2016
School
Department
Course
Professor
Document Summary
76 million in the us get foodborne illness per year. Don"t do a very good job at tracking/diagnosing. Many other causes/diseases that can cause the same symptoms. Water is the most important potential source of infectious disease. Water quality can cause massive spread of infectious disease - can be life- threatening. Microorganisms used to remove pollutants, in addition to physical and chemical purification procedures. Coliforms: general term for bacteria that typically colonize the gut. Proxy indicator for fecal contamination of water (even though they aren"t typically pathogenic) Live in intestinal tract of humans and other animals. Rod-shaped gram- non-spore forming bacteria, can ferment lactose with production of acid and gas when incubated at 35-37c. Methods not developed effectively until modern times (20th century) Most significant procedure developed for preventing waterborne diseases. Larger city population that infrastructure wasn"t keeping up with. Massive downward shift after introduction of filtration, again after chlorination.
