trinibear11ow8k1f trinibear11ow8k1f

23-02-2018
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16.
Who created a vaccine that prevented polio, a widespread and deadly disease?

A. Norman Borlaug
B . Jonah Yoder
C. Jimmy carter
D. Jonas Salk

Respuesta :

hailey1005 hailey1005

23-02-2018

The answer is D, Jonas Edward Salk!

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ryanabeijon1 ryanabeijon1

23-02-2018

Jonas Salk created the polio vaccine

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