Saudi Arabia says a man has died from a new respiratory virus related to SARS, bringing to 63 the deaths in the kingdom at the center of the outbreak.

The Health Ministry said Friday the latest victim, a 19-year-old, died in the city of al-Kharj, southeast of Riyadh. Two of his sisters are in hospital on suspicion they have been infected with the virus. If they prove to be positive, it would further raise the number of people infected.

Noor Jahan rocked slowly on the floor, trying to steady her weak body. Her chest heaved and her eyes closed with each raspy breath. She could no longer eat or speak, throwing up even spoonfuls of tea.

Two years ago, she would have left her upscale home — one of the nicest in the community — and gone to a hospital to get tests and medicine for her failing liver and kidneys. But that was before Buddhist mobs torched and pillaged her neighborhood, forcing thousands of ethnic Rohingya like herself to flee to a hot, desert-like patch of land on the outskirts of town.

A man who suffered horrific facial injuries in a motorbike accident has had pioneering surgery to rebuild his face using 3D printed parts.

Stephen Power from Cardiff in Wales is thought to be one of the first trauma patients in the world to have a procedure in which 3D printing was used at every stage.

Geneticists said Wednesday they had pinpointed the most important obesity gene yet, throwing up a possible target for drugs to tackle a dangerous and growing epidemic.

Mice bred to lack a gene dubbed IRX3 were almost a third lighter than rodents with the gene, they said.

A first-of-its-kind vaginal gel that is designed to be applied after sex has shown promise in preventing the virus that causes AIDS in research monkeys, U.S. scientists said Wednesday.

While testing is still at a very early stage, researchers hope the gel could be a more practical and effective option than current anti-retroviral gels on the market which must be applied before sex.

Victims of Haiti's deadly post-earthquake cholera epidemic filed a new lawsuit Tuesday against the United Nations in U.S. federal court, demanding compensation over the organization's alleged responsibility for the outbreak.

The class-action suit -- representing some 1,500 victims -- is the "the largest lawsuit against the U.N. regarding the outbreak to date," plaintiffs' representatives said in a statement.

The Food and Drug Administration said Tuesday it approved a nerve-stimulating headband as the first medical device to prevent migraine headaches.

Agency officials said the device provides a new option for patients who cannot tolerate migraine medications.

With its exploding urban population burning ever more coal and wood, Africa could contribute as much as 55 percent of the world's particle pollutants by 2030, a study said Tuesday.

In 2005, the continent's global share of these atmospheric pollutants ranged from a five percent for sulphur dioxide and nitrogen oxide to 20 percent for organic carbon, according to the findings published in the journal Environmental Research Letters.

Nicotine patches fail to help pregnant women to stop smoking, according to a study published by the British Medical Journal (BMJ) Tuesday.

Researchers in France asked more than 400 women who smoked at least five cigarettes a day to try either a nicotine patch or a dummy patch called a placebo.

A natural compound hidden away in spinach has been shown to reduce food cravings between meals and could help prevent obesity, a Swedish scientist said on Monday.

Charlotte Erlanson-Albertsson, a professor of appetite regulation at Lund University, found the compound, known as thylakoid, while looking for ways to slow digestion and alleviate hunger pangs.