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Lecture

The Black Death

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Department
Anthropology
Course
ANTHROP 2U03
Professor
Karen Slonim
Semester
Summer

Description
The Black Death Types of PlagueBubonic plagueSepticaemic plagueo Bacilli invade the blood stream and usually causes death before boboes appearo This is an acute form of bubonic plague o Much more rapid than bubonicPneumonic plagueo May begin with a case of bubonic plague complicated by pneumonia but can then take off as a disease spread by bacteria coughed out in the sputum of the victim and inhaled by people around him or her o This form of plague is not dependent on flea transmissiono Shorter incubation period 13 dayso 100 mortality rate Note Plague is still endemic in Vietnam SWBubonic Plague Yersinia pestis o Primarily an internal parasite of rodents particularly rats Rattus rattus o It is carried from humans to humans by fleas usually Xenopsylla cheopis deserting dying or dead animals in search of nourishment Humans are incidental hosts not the primary targetsVectorXenopsylla cheopis o Fleas with a proventriculus a valve of sorts at the entrance to the stomach becomes blocked by ingested bacill
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