How do I find primary sources about the polio vaccine and anything else that relates to it?

How do I find primary sources about the polio vaccine and anything else that relates to it?Need to find some primary info about how the polio vaccine had an impact and change on the world. Since a lot of people around that time are dead, I haven't been very successful with an interview. Also, is a secondary source with primary pictures considered a primary source?

Sophia
i would try finding a newspaper article or something from the time period. you can check in a library or on possibly on the web. a diary with that info in it, a scientific journal from the time are also ways. this might be hard to find though. good luck

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Polio

A video I made for a polio project. Kind of enlightning.
Video Rating: 4 / 5

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