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Theories of the causes of diseases throughout history - Coggle Diagram
Theories of the causes of diseases throughout history
A DEADLY DEBATE
10 000 years societies have been subjected to epidemics and pandemics
prolonged diseases such as malaria, typhoid, smallpox, cholera, polio, leprosy and the plague
no scientific explanations
super natural
until 1800 - few scientific explanations - diseases
SIN
Thought God caused iseases
deeply religious and fearful world - punishment from God
brought illness on themselves because of sin
STARS
Stars + Heavenly Bodies - influenced diseases
Influenza means - heavenly influence (latin)
blast of stars
pull of the moon - mental illness
lunacy and lunatic from Latin word for moon - luna
MIASMA
sick people near swamps, sewers and piles of filth and bad smelling places
harmful, poisonous gasses called "miasmas" - through air
Malaria - "swamp fever" - sufferers near water
Malaria means "evil air" - Italian
THE FOUR HUMOURS
Greek father of medicine - Hippocrates
4 liquids fill the body - blood - phlegm(snot), yellow bile and black bile
good health all 4 humours in balance
CONTAGION
Arab scholars - "minute bodies" invade Healthy persons
a century later - Fracastoro agreed (Italian doctor) - "disease seeds" cause infection
"F" - could be passed on through clothes -
smallpox + measles carried on voyages to new discovered islands - catastrophic effect
BUG BREAKTHROUGH - GERM THEORY
Scientists - John Snow, Louis Pasteur, Robert Koch
germs and NOT bad air spread disease
could not stop epidemic disease outbreaks until 19th century