Reversed hockey stick

Worldwide cases of Guinea worm have been reduced by 5 orders of magnitude in the span of 30 years: one human generation. And a lot of the credit goes to The Carter Center, established by former President Jimmy Carter and his wife Rosalynn.

Perhaps most astonishingly, the disease is facing eradication due to public health education and dirt-cheap technology: water filters. Chew on that, Big Pharma.