BIO SCI 1A Lecture 12: 11-08-12
5 Mar 2016
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Document Summary
Carried by parasites fleas on the backs of rodents (black rats) Could be carried by any kind of rat, or by cats. Influence of buboes: black and discolored welts and bulges that are painful. Multiple forms of disease, variable symptoms: untreated, fatality rates 50%. Second pandemic between 1347-1352 killed 25 million people in europe. This is the biggest bio-medical disaster in history. Everyone vulnerable, in both cities and rural areas. Determined illnesses by looking at color and consistency of urine. But had no concept of bacteria, or how spread, and what to do. 20-25 million people died between 1347-1350 and fast diffusion. Third pandemic 1855 china and india (12 million people) Most continents have reservoir of rodents with infected fleas. But mortality rate was low compared to black death. Importance of asian customs, global travel, global cooperation, and global panic. Eugenics active promotion by humans of particular traits in a human population. Underlying belief: those selected for are better adapted.
