teamed up with Unicef
to eradicate tetanus, a deadly threat that has hit regions of Africa and Southeast Asia particularly hard. Each year the infection takes the lives of 128,000 babies and nearly 30,000 mothers worldwide. "But this disease is 100 percent preventable," Hayek told InStyle
. "If we meet our goal, it will be eliminated by 2012." The actress even administered tetanus vaccines herself to at-risk women in Africa. "It was scary," she said. "But it made them so happy to get the shot that it made me happy too."