Question

write the detailed information on the story of discover of the small pox vaccine

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Answer 1

Explanation:

Smallpox vaccines

The history of smallpox holds a unique place in medicine. It was one of the deadliest diseases known to humans, and to date (2016) the only human disease to have been eradicated by vaccination. The smallpox vaccine, introduced by Edward Jenner in 1796, was the first successful vaccine to be developed. He observed that milkmaids who previously had caught cowpox did not catch smallpox and showed that inoculated vaccinia protected against inoculated variola virus.

The global eradication effort initially used a strategy of mass vaccination campaigns to achieve 80% vaccine coverage in each country, and thereafter by case-finding, followed by ring vaccination of all known and possible contacts to seal off the outbreak from the rest of the population.

In 1961 the bifurcated needle was developed as a more efficient and cost effective alternative, and was the primary instrument used during the eradication campaign from 1966 to 1977. The bifurcated needle vaccination required only one-fourth the amount of vaccine needed with previous methods and was simpler to perform

Answer 2

Explanation:

vaccines are which protest us againist many diseases causing micro organisms .

STORY OF SMALL POX VACCINATION

one day edward jenner went to a village for medical purpose then he saw a milk maid who is suffers with cowpox and she has an wound on her hand .then he immediatly consulted her and took the samples of her wound .

and he observed that all people were effected with cow pox . he observed the samples of the cow pox of the milk maid she has less serious disease, did not develop the deadly small pox ,a very dangerous disease wiping out millions of people in those days

i,e

Cowpox is similar to, but much milder than, the highly contagious and often deadly smallpox disease. Its close resemblance to the mild form of smallpox .

in 1796, jenner took the fluidfrom a cowpox pustle on milkmaid's hand and inoculated a 8 years old boy with his parents permission. six weeks later ,he exposed the boy did not develop any symptoms of smallpox . this invention of small pox vaccine saved the millions of people from this deadly disease.

this proves the way for the discovery of number of vaacines which prevent us from harm full diseases. the word (vacca ) which means cow