There were people in Africa refusing polio vaccines because they were told it was a western plot to sterilize them.
Robot doctors and nurses, like CP30 or the robot on ‘Lost Planet’? Or ‘Lost In Space? “Danger! Danger Will Robinson. Your innards are liquifying and the linings of your intestines are sloughing!”.
Truth be told, I think this is spreading mainly because despite exposure to Western society and technology, they are still suspicious of us. Which means that they might at some point refuse normal medicine and any other intervention. It’s a complete miserable situation.