BIOL 2041 Lecture Notes - Lecture 1: Gas Gangrene, Lymph Node, Phytophthora
Document Summary
Plague is painful and ugly, characterized by swollen lymph glands (buboes); fever soars as y. Social/political dislocations and the resulting terror were immense. 500 years later (1890), microbiologists identified the cause: a bacterium called yersinia pestis. Infected fleas carry the bacterium, spreading the infection to rates as fleas bite them; rats have. Microbiology the study of microorganisms (microbes), living things too small to be seen with the unaided eye. Pathogenic (disease-causing) microbes have caused epidemics, leading to social/political change and chaos. Potato blight a disease of plants caused by a fungus; it was responsible for the irish famine of the. 1800s. causing them to rot, the result was devastating (starvation and hunger-based disease spread). When hernan cortes landed in mexico in 1519, the native american population was 25-30 million; within. 50 years, the diseases brought from europe (which europeans were relatively tolerant to) shrunk this population to 3 million (90% died). without much resistance.
