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Edward Jenner's discovery of smallpox and Cowpox
Edward had had noticed that his cows were infected with smallpox but he closer examined the cow and he had an idea that the cow has smallpox but a weak version of it and so he wondered why was this. he noticed that there are blisters containing puss that could have been protecting the cow from the disease but that was just his theory. so he injected the puss into a child for a few weeks then injected smallpox into the child. the child was sick but after a few days he made a complete recovery. -
Mapping the 1854 London Cholera outbreak
John Snow is regarded as one of the founding fathers of epidemiology. because in his time he took notice and later began to map out where was cholera spreading in the mass population of London.he saw and tested to see that lower classes of society were more prone to the disease. which then led to many deaths, Cholera was in the wells of London and so John Snow started to count and show how many were infected or dead by each class and what well was causing the most deatlhs. -
the tactics to preventing malaria
to prevent malaria are to prevent mosquitoes and use antimalaria medicine -
the 1918 influenza pandemic
people in 1918 have noticed the sudden rise in deaths from just in a year of this new disease that was discovered which would be later named the influenza pandemic. this disease was four times more potent and lethal than the black plaque and is one of the most astonishing devastating disease to face humanity. victims would die from it within hours of infection and at the time was being researched for a cure. -
How effective was Jonas Salk’s initial testing of the polio vaccine?
Jonas Salk's vaccine was so effective at curing polio that the number of people in the US that were infected were from 43,000 people to just 910 people that is how effective the vaccine was