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Where was the first vaccine against plague tested in humans?
Quick Answer
Early plague vaccine testing in humans took place in India in the early 20th century.
The Full Story
Human testing and field use of early plague vaccines took place in India in the early 1900s, where plague outbreaks were a major public health concern. Plague is caused by the bacterium Yersinia pestis and can spread through fleas, animals, and in some forms from person to person. Vaccine development was one of several strategies used to control outbreaks alongside sanitation and surveillance. Modern plague vaccines are not widely used, but research continues.
Key Facts
1.Testing in the early 1900s
2.Occurred in India
3.Targets Yersinia pestis
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"India was where early plague vaccines faced one of medicine’s toughest tests."
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