Two doctors have been sent to prison in Brazil for selling contraband organs to the United States as part of a suspected trafficking scheme, law enforcement officials said Friday.

The two men, Celso Roberto Scafi and Claudio Rogerio Carneiro Fernandes, are both urologists who practiced medicine in the southeastern state of Minas Gerais.

A man has died in Jordan after being infected with the MERS virus, the kingdom's first fatality from the respiratory disease in more than a year, news reports said Saturday.

Another man was reported to have died of the H1N1 virus, or swine flu.

After nearly two decades of study, the Food and Drug Administration announced rules Thursday designed to make sure that infant formula is safe and nutritious.

Most formula makers already abide by the practices, but the FDA now will have rules on the books that ensure formula manufacturers test their products for salmonella and other pathogens before distribution. The rules also require formula companies to prove to the FDA that they are including specific nutrients — proteins, carbohydrates, fats, vitamins and minerals — in their products.

For a year, the patient suffered from a range of worsening symptoms that left doctors stumped.

His heart started failing, his sight and hearing deteriorated, he suffered from acid reflux, swollen lymph nodes and an inexplicable fever. The outlook was grim.

French doctors said on Friday they had used gene testing to help women with advanced breast cancer get access to clinical trials that may offer a better chance of treating their disease.

The study, the biggest of its kind, improves the chances of getting drugs that, like a sniper's rifle, aim at a specific type of tumour, they said.

Just as heart attack symptoms may differ between men and women, so do stroke risks.

Now, the American Heart Association has issued its first guidelines for preventing strokes in women. They focus on birth control, pregnancy, depression and other risk factors that women face uniquely or more frequently than men do.

The number of people dying from measles has fallen to a record low, driven down by mass vaccination campaigns, but outbreaks in crisis zones such as Syria remain a threat, the U.N. said Thursday.

"We have reached a record low in measles cases, with a 77 percent decline from 2000 to 2012, which has led to a record drop in the number of estimated deaths, by 78 percent," said Robert Perry of the World Health Organization's immunization department.

Eating yoghurt and low-fat cheese can cut the risk of developing diabetes by around a quarter compared with consuming none, according to a study of 3,500 Britons published on Wednesday.

The evidence comes from a long-term health survey of men and women living in the eastern county of Norfolk, whose eating and drinking habits were detailed at the start of the investigation.

An amputee with a bionic hand has for the first time been able to feel the texture and shape of objects in his grasp, European researchers said.

The success of the month-long trial in Italy has energized researchers in the hunt to solve one of the most difficult challenges in prosthetics.

Vietnam has recorded its second death from bird flu in 2014, a health official said Thursday, as regional concerns over a potential resurgence of the deadly virus grow.

A 60-year-old woman from southern Dong Thap province died on January 28 and tested positive for the H5N1 virus the following day, provincial medical department director Nguyen Ngoc An told Agence France Presse.