Global Health

The World Health Organization is reporting that the Ebola virus has yet to be contained in West Africa. It's one of the largest Ebola outbreaks in decades.

Los Algodones is tiny, but with help from the Internet, the Mexican border town has become a virtual dental factory, drawing patients from across the U.S. and Canada.

A campaign in Africa to prevent HIV has persuaded 6 million teens and men to get circumcised and aims to sign up 14 million more. To do so, health officials must appeal to male vanity.

With more than a million visitors expected for the games, Brazilian authorities are trying to control the mosquitoes that carry the disease and stop a sudden spike of cases in Sao Paulo.

The worm causes a debilitating intestinal disease called schistosomiasis. And the parasite is spreading rapidly because of an economic boom along the shores of East Africa's Lake Malawi.

Removing bacteria and other impurities from water could be done more cheaply thanks to researchers at MIT. They're taking advantage of the way trees move water to filter it.

Transmitted by mosquitoes, the chikungunya virus causes rash, fever and excruciating joint pain. It has no cure. The good news: It's rarely fatal. Epidemiologists say the virus is headed to the U.S.

Improving access to clean water can reduce the spread of diarrheal diseases in developing countries. The "Drinkable Book" should help: It has water safety tips and each page works as a filter.

A second case of the new Middle East respiratory syndrome has shown up in the U.S. The virus has been spreading through Saudi hospitals. Health officials expect more cases to appear here.

"If smallpox is outlawed, only outlaws will have smallpox," says one NIH virologist. Others say keeping vials of deadly virus just invites a horrific accident or theft. WHO is about to vote — again.