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andrezito [222]
3 years ago
15

What is the order of events Salk needed to follow to discover his polio vaccine?​

English
1 answer:
KengaRu [80]3 years ago
4 0

Explanation:

polio vaccine was discovered by jonas saulk, 1953. order of events he had to follow / Saulk introduced the 1st vaccine with dead polio virus injected in humans, in 1953. 1st 2 introduce dead virus into humans, proved to be a substantial tool for vaccination of children and adults. proven to work, we use this vaccine today...

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