Vaccinating for cholera in Haiti

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The World Health Organization will start vaccinating Haitians against cholera in April. Dr. Peter Hotez is an expert in vaccine development at George Washington University and speaks to anchor Katy Clark. Download MP3

DDT use provokes political battle in Uganda

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The pesticide DDT, long banned in the United States, has made something of a comeback in Africa. DDT can be an effective weapon against malaria. The U.S. government, and the World Health Organization are encouraging African countries to use the insecticide, and say it is safe when handled properly. But in the East African nation of Uganda, DDT has provoked a fierce political battle. Reporter Alison Hawkes traveled to northern Uganda.

Polio vaccination effort in east Africa (2:50)

Anchor Lisa Mullins speaks with Chris Maher of the World Health Organization, who is helping coordinate a massive polio vaccination campaign in Kenya and Uganda. Health workers plan to immunize nearly 5 million children tomorrow. The virus had been eradicated from those countries years ago, but it recently reappeared.