HLTB21H3 Chapter 3: Six Plagues of Antiquity and The Black Death -Ch.3 and 4.docx
Document Summary
Six plagues of antiquity and the black death. As humans changed their way of life they"re relationship with infectious diseases became altered. A population that had little or no exposure to new infections led to a time where epidemics were nonexistent. Only diseases with high transmission rates only existed such as std"s , and macro parasitic diseases. Agriculture contributed to the decline in the human health. Urban health enhanced the transmission of certain diseases through air/water by vectors such as snails, mosquitoes, and flies. Aka snail fever involves feces, urine, snails, and a flatworm. Today it is called schictomiasis or billarzia. Suspicions include humans aqquired the disease by eating infected snails or by drinking water infected by larvae. The piling up of egg blocks in the blood strea m results in death (read pg 49-53 for a better explanation) The inhabitants of the nile/tigris/euphrates rivers were healthy but not immune to the diseases that were endemic to the region.
