The southern African nation of Botswana has one of the highest rates of HIV in the world. Nearly 25 percent of all adults in the country are infected with the virus. Only the nearby kingdom of Swaziland has a higher rate.
But Botswana is also remarkable for its response to the epidemic. It has one of the most comprehensive and effective HIV treatment programs in Africa. Transmission of HIV from infected mothers to their fetuses and newborn babies has been brought down to just 4 percent.
In Washington, D.C., the glittering marble of public buildings and monuments can conceal the darkest of deeds. And in the crime novels of Mike Lawson, they do.
"When I started writing, the very first decision I made was, I wanted the book set in D.C.," says Lawson, who recently published his seventh Washington-based thriller, House Blood. "That was before I had a character, or anything else."
Researchers are studying the ability of beneficial micro-organisms - or probiotics - to treat a range of conditions from eczema to inflammatory bowel disease. And the idea that "good" bacteria are healthy for us is gaining traction.
Syrian activist Karam Nachar is pursuing a doctorate in Middle Eastern history at Princeton. His family is working on several fronts against the Syrian regime. His father, who has been jailed previously, helped form the Syrian National Council, an organization of dissidents.
The Nachar family has long been on the radar of the Syrian government, and since last year, they have become even more visible.
When Syrians first started openly protesting inside the country in the spring of 2011, 29-year-old Syrian Karam Nachar was working on his doctorate in Middle East history at Princeton University. He joined demonstrations outside U.N. headquarters in New York.
There are two big factors that will determine the outcome of the presidential election: the economy and demographics.
The economy is weak and doesn't look likely to improve by much, but the makeup of the electorate on the other hand is highly dynamic. It continues a trend underway for years: a rapid rise in the number of people who are not Anglos in both the population and at the polls.
That percentage actually doubled between 1992 and 2008, says Alan Abramowitz, a political scientist at Emory University.
Liberia is launching its first large-scale military operation since the end of its brutal civil war. Liberia's army, which has been trained by the U.S. military over the last six years, is going after mercenaries and rebels who are using thick forest as cover from which to launch ambushes in neighboring Ivory Coast.
Benjamin Franklin once gave mouth-to-mouth (or, mouth-to-beak?) to a hen after electrically shocking it. According to science historian Alex Boese, it was the first known resuscitation of an electric shock victim using the mouth-to-mouth method.
Jazz bassist and bandleader Linda Oh says her new album, Initial Here, is an exploration of her heritage. She was born in Malaysia to Chinese parents, but as a toddler, she moved with her family to Australia.
Oh started taking piano lessons there when she was 4. Music was just a hobby back then, but once her uncle strapped a bass guitar around her neck, that's when she fell in love.
Oh cut her teeth playing bass in both jazz and rock bands all over her hometown of Perth in Western Australia.