In the early 1800s, both Spain and Portugal disseminated the smallpox vaccine throughout the Americas via the ‘arm to arm of the blacks,’ that is, enslaved Africans and African-Americans, often children, who were being moved along slave routes as cargo from one city to another to be sold.
![](https://bazilevs.pro/wp-content/uploads/2016/01/mt_yankee_testimonial2.jpg)
Marie Binneton
19.01.2016
Olga
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