he saw milkmaids
he saw milkmaids
Edward Jenner did not discover germs, he developed vaccination for smallpox (using cowpox pustules) which was much safer than the inoculation for smallpox (using smallpox pustules) then in use. However he had no idea what actually caused smallpox, only that it was something invisible in the pus from the pustules.
"When he was young he was given smallpox on purpose. It was hoped that, because he was so young and healthy, he would survive and so live to tell the tale if he caught smallpox when he was older."
Edward Jenner, an English physician, discovered the smallpox vaccine in 1796. He came upon this discovery by noticing that milkmaids who had the cowpox virus, a less threatening disease, did not catch the dangerous smallpox. Jenner then infected an 8-year-old boy with the cowpox. After six weeks, he exposed the boy to the smallpox disease and the boy did not show any smallpox related symptoms.Sone fun facts:-Jenner coined the term 'vaccine': 'vaca' means cow in Latin.-Before the vaccine, the death rate of the disease was up to 35%.
Yes. He noticed how milkmaids caught cowpox, but didn't get smallpox. Cowpox was similar to smallpox but much milder so didn't kill people who caught it. The milkmaids who had caught cowpox didn't catch smallpox because their body had become immune to it after having cowpox. To test this theory, Jenner took some of the pus from a cowpox spot from a milkmaid and injected it into a boy named James Phipps. He fell ill, but didn't die. He then recovered and Jenner took the pus of a smallpox spot, in a high dose, and then injected this into James phipps. This was very risky because smallpox at the time was very deadly. James Phipps did not fall ill. The cowpox had made him immune to smallpox. This vaccination was done on more and more people to make more people immune to smallpox.
He inoculated an 8 year old boy by introducing infection from a cow into his system. The boy developed a slight fever but was not seriously ill. Jenner then injected him with material containing the disease and no illness followed.
James Phipps
what gave him the idea how to stop the disease
Edward Jenner saw how milkmaids didn't have smallpox because they had cowpox, and didn't die. So he gave a boy a dose of cowpox and he got ill, but didn't die and then he gave him a dose of small pox and he didn't die because he had had cow pox already. (phew!)
He did it just to make sure his calculations were correct because not everyone is the same
He tested it on an 8 year old boy and on some of his children.
he test it with a vaccine