Tanzania Rejects Shot Against ‘Satanic’ Virus

Medical experimentation in Africa:

https://en.wikipedia.org/wiki/Medical_experimentation_in_Afr...

Although an op-Ed it is an NYT op-Ed:

Why Africa Fears Western Medicine

https://www.nytimes.com/2007/07/31/opinion/31washington.html

A couple of datapoints to consider.

Edit: added second source.

> “We are not yet satisfied that those vaccines have been clinically proven safe,” Dr. Gwajima said at a news conference, flanked by unmasked government health officials.

The headline is fairly sensationalist in light of this quote, which is a fair position to take when the vaccines being considered for the program haven't been approved in many places.