GEO 210 Lecture Notes - Lecture 8: Natural Selection, Leper Colony, Multi-Drug-Resistant Tuberculosis

• School: Ryerson University
• Department: Geography
• Course: GEO 210
• Professor: Larry Fullerton

Document Summary

Study of how often diseases occur in differnet people and why. No agreement several diseases have long records. The bacteria usually attack the lungs, but tb bacteria. Can attack any part of the body such as the kidney, spine, and. If not treated properly, tb disease can be fatal. Low incidence but variation in population (aboriginals people. Probem of overuse of cures and nature of bacteria. No one may agree exactly on which diseases have plagued mankind the longest, there are several diseases which have a long record of illness and death among humans. One of history"s oldest diseases is tuberculosis. It spreads by droplets expelled when an infected person sneezes or coughs. Evidence of tb has been found in an archaeological dig off the coast of israel. Is a treatable disease but comes with a high cost, means poor nations cannot afford it. In 2013 there were an estimated 9 million people that developed tb worldwide.