Wal-Mart, the nation's largest retailer, announced it will start selling nearly 300 generic prescription drugs at sharply reduced prices. One of its competitors, Target, responded that it will offer similar cuts. Analysts discuss the new drug plans.

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Washington D.C. has begun to offer a rapid oral HIV test free to residents -- the first program of its kind. The director of the D.C. HIV/AIDS Administration discusses the program's aim to increase awareness, draw in more patients and…

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As the number of patients stricken with Alzheimer's disease continues to grow, so does the community of families and caregivers who have pledged to look after loved ones, often risking emotional, physical and financial burdens.

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International agencies are providing relief aid to the estimated 700,000 Lebanese civilians displaced by the recent crisis. Israel opened four humanitarian corridors into Lebanon on Tuesday for relief agencies to provide food and medicine to those in need.

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Warren Buffett, the world's second richest person, has donated nearly 85 percent of his fortune to the Bill and Melinda Gates Foundation to help fight disease and poverty and improve education.

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Harvard researchers announced Tuesday that they have begun efforts to clone human embryos to create stem cells by using private funding to get around federal funding restrictions.

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The World Health Organization launched an investigation Wednesday into the deaths of six family members in Indonesia who may have died as a result of human-to-human transmission of the bird flu.

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