Stem cell treatments

When a 2001 federal funding freeze crippled research into the use of embryonic stem cells to treat medical conditions, molecular biologists began searching for alternatives. Now, they may have found one: By reprogramming adult skin cells, researchers have produced stem cells, but in recent studies, the cells produced tumors in mice.

In Zimbabwe, the water taps are dry. The country’s water system is old and broken. Many Zimbabweans are forced to dig their own wells and use water that’s not clean. That’s exposing people to disease. We have this report from Harare.