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How did edward jenner know that the smallpox vaccine would work?
Wiki User
∙ 11y ago
He didn't know it would work, that is why he tested it for both safety & effectiveness.
- Safety, his cowpox pus based inoculation caused fewer and milder symptoms than the existing smallpox pus based inoculation, also it produced no cases of smallpox a common problem of the existing inoculation.
- Effectiveness, when vaccinated a person was later exposed to smallpox and did not catch it.
Note: vaccina is Latin for cow.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoFirst it wasn't a cure. It had been known for some time before Jenner that people that survived smallpox could never get it again. Treatment with ground up human smallpox pustules had been attempted to get immunity, but was generally regarded as too dangerous.
Jenner's crucial observation was that milkmaids almost never got smallpox and that cows had a related but much milder disease called cowpox. His conclusion was the milkmaids caught cowpox from the cows, thus also becoming immune to smallpox. He therefor tried a treatment of ground up cow cowpox pustules and it worked.
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When was the measles vaccine invented?
In 1967 the World Health Organization (WHO) started a worldwide campaign to eradicate smallpox. This goal was accomplished in 10 years due in a large part to massive vaccination efforts. The last endemic case of smallpox occurred in Somalia in 1977. On May 8, 1980, the World Health Assembly declared the world free of smallpox.
Which vaccine type is not given usually to people whose immune system is compromised?
I would assume that live and weakened vaccine would not be given to such people.
Does global warming have an impact on smallpox?
The World Health Organization certified the eradication of smallpox in 1979. Earlier during the 20th century smallpox claimed the lives up up to half a billion people. Since the only smallpox virus samples left remain in US and Russian bioweapon laboratories, the answer is no, global warming has no impact on smallpox. However, were weaponized strains to be released, the warmer temperatures would help accelerate the spread of the disease.
What was the effect of smallpox on hispaniola?
a lot of people were dying much quicker and the disease would spread
Why is anti-measles vaccine given at 9 months?
anti measles vaccine is given at 9 months of age because before that the child has already got anti measles antibodies derived from her mother and the vaccine would be unable to elicit the response. At 9 months , we assume (in case of developing nations) that there are no maternal antimeasles antibodies left
What would be the most appropriate to paraphrase?
Events that led to Edward Jenner's discovery of the smallpox vaccine.(APEX)
Histri and work Edwsr jenner?
The history and work of Edward Jenner would be that he was an English physician and scientist from Berkeley, Gloucestershire, who was the pioneer of the smallpox vaccine.
An individual who played a huge role in smallpox vaccine?
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%.
How was the smallpox vaccine invented?
Dr Edward Jenner injected small boy who had smallpox with cowpox, after hearing from a dairy maid that people who got cowpox would not get smallpox. This worked and that's how vaccination came about.
Who was the man who cured smallpox?
That would be Dr. Edward Jenner.
Why was edward Jenner given smallpox as a young man?
"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."
How Edward Jenner found vaccination?
Observation and deductive reasoning. Smallpox was a scourge during Jenner's time, but he noticed that milkmaids contracted a very mild illness similar to smallpox called "cowpox", from which they recovered easily. He postulated that a tiny bit of the cowpox serum could be injected into a well person, and the mild cowpox might protect them from the deadly smallpox. It worked.
What was edward Jenner's prediction?
Well, Edward Jenner was my great great great great Uncle. He predicted that if you would inject the Cowpox virus into a person with smallpox, you would be amune to smallpox. His prediction was correct.
Why did edward Jenner choose James phipps for his experiment?
Because James Phipps had never had Smallpox and Jenner needed somebody who was not immune to smallpox or else this experiment would not work.
How old was Edward Jenner when Edward he invented the vaccination?
This did not happen suddenly in a single year, nor was Jenner the first person to discover this or use vaccination.English physician John Fewster had realized before 1768that prior infection with cowpox rendered a person immune to smallpox.In the years following 1770, at least five investigators in England and Germany (Sevel, Jensen, Jesty 1774, Rendell, Plett 1791) successfully tested a cowpox vaccine in humans against smallpox. For example, Dorset farmer Benjamin Jesty successfully vaccinated and presumably induced immunity with cowpox in his wife and two children during a smallpox epidemic in 1774, but it was not until Jenner's work that the procedure became widely understood. Jenner may have been aware of Jesty's procedures and success.On May 14, 1796, Jenner tested his hypothesis by vaccinating James Phipps, an eight-year-old boy who was the son of Jenner's gardener. Phipps was the 17th case described in Jenner's first paper on vaccination, clearly Jenner had performed vaccinations before vaccinating Phipps.
Can you get rid of the Smallpox?
Smallpox has been eradicated in the year 1977. Edward Jenner found a vaccine for the disease. Donald Henderson created ring immunization, which got rid of smallpox for good. Ring Immunization was the process of when an area had smallpox, everyone else in that area would get vaccinated... ---- I think that's how they got rid of smallpox. I'd check other sources if I were you like the CDC website.
What were the 2 biggest medical advances during the Industrial Revolution?
I would have to say that the two biggest medical advances during the Industrial Revolution are the smallpox vaccine in 1796 by Edward Jenner, and the invention of the X- ray in 1895 by Wilhelm Conrad Roentgen
