HLTB21H3 Study Guide - Pertussis, Smallpox
13 Jan 2013
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Document Summary
Diseases were caught from insects in the trees before ape-men knew how to walk (mosquitoes) When they learned how to walk, the diseases were caught by insects and animals on ground level (ticks and flies) As years went on, ape-men became more civilized (farmers) They created their own homes and started to farm. Population increased dramatically but then slowed down because not everyone was needed to farm meaning women had other chores to do and they couldn"t take care of more than one baby at a time. They used feces and manure for fertilizer which transmitted many diseases throughout the communities. More people meant more of them would catch a disease which would allow the parasites to travel faster and further. Domestic animals (cows, rabbits, goats, sheep, etc) all carried unknown parasites and diseases. Climate change allowed for better adaptation as well as new/ more parasites.
