Marc Koska wants to improve health care in the developing world by re-designing dangerous medical tools — and offering education to practitioners in under-funded clinics.

Why you should listen

In 1984, Marc Koska read an article that predicted HIV would spread widely through unsafe injections. He writes, "Appalled at the prospect of such an avoidable catastrophe, I decided there and then to try and do something about it." The prediction, sadly, turned out to be true: syringe reuse now accounts for 1.3 million deaths -- more than malaria. In the next years, Koska undertook the study of public health to find out what could be done. He determined that the design of syringes was the critical issue.

Today, Koska's solution to the problem, the K1 syringe -- it locks down after a single injection, preventing reuse -- is in use by millions. But he hasn't stopped there: In 2005, he founded a nonprofit, SafePoint, which aims to educate people in the developing world about the dangers of reusing any instruments that come into contact with blood.

What others say

"As a member of Parliament with an interest in HIV and AIDS, to learn of Marc's work with Star Syringe was an inspiration. He will always be one of my heroes!" — Laura Moffatt, Member of Parliament for Crawley

Marc Koska’s TED talks