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Lecture 2

Lecture 2 Plagues

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Department
Health Studies
Course
HLTB21H3
Professor
Caroline Barakat
Semester
Summer

Description
PLAGUES- LECTURE 2 - predominant diseases during hunter-gatherer society were those that had high transmission rates; had big parasites; and those that are sexually transmitted; not necessarily relied on vector -movement to agriculture and the emergence of epidemic diseases -emergence of cities and urban life new diseases related to crowding emerged and these were known as crowding diseases e.g. measles and tuberculosis -Plagues of Antiquity: diseases that occurred from 5000 BC-700 AD; characterised by parasites with long lived transmission stages; had to be transmitted from person to person to contact because population was scarce Pharaohs Plague- happend in 1900 BC, thought to have appeared in the Nile Valley of Egypt and thought to have occurred due to change in agriculture and irrigation; the water would sit stagnant and would allow certain parasites to live there; still prevalent in society but now known as snail feverblood fluke diseaseendemic hematuriaschistosmiasis; the transmission stages of the parasite are microscope eggs which grow to become worms and enter and clog blood vessels of humans; 1799-1801 European
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