Angry French doctors and health workers staged a protest march across the capital Sunday, gathering more than 40,000 people according to organizers and 19,000 according to police.

Doctors, interns, nurses and dentists have been protesting for weeks, with some staging a two-week stoppage before Christmas, to amend a controversial health bill that goes before a parliamentary committee from Tuesday.

A minimally invasive procedure to replace the aortic valve without doing open heart surgery has better outcomes after five years than patients who did not have surgery at all, researchers said Sunday.

Aortic stenosis is a common form of heart disease, in which the valve does not open fully and decreases blood flow from the heart. Options for fixing it include open heart surgery, minimally invasive valve replacement by catheter, and inserting a catheter into the groin and inflating a small balloon in the aortic valve to open it, known as balloon aortic valvuloplasty.

People who took folic acid supplements along with a medication for high blood pressure called enalapril, marketed in the U.S. as Vasotec, were less likely to have a stroke than people who took the drug alone, researchers said Sunday.

The study was based on a pool of more than 20,000 adults in China with high blood pressure but no history of stroke or heart attack, and was published in the Journal of the American Medical Association (JAMA).

The deaths of three people who developed a foodborne illness linked to some Blue Bell ice cream products have prompted the Texas icon's first product recall in its 108-year history.

Five people, in all, developed listeriosis in Kansas after eating products from one production line at the Blue Bell creamery in Brenham, Texas, according to a statement Friday from the U.S. Food and Drug Administration.

A German court has ruled that a prominent anti-vaccination advocate must pay a doctor 100,000 euros ($105,720) in prize money he had promised to anyone who could prove measles is a virus.

Biologist Stefan Lanka made the offer on his website in 2011, but rejected the six scientific studies Dr. David Bardens provided as proof.

Several American healthcare workers who may have come in contact with a US volunteer who tested positive for Ebola in Sierra Leone are being monitored for signs of illness, officials said Friday.

The patient, whose identity has not been revealed, was in serious condition after arriving by private charter plane at the National Institutes of Health Clinical Center near the US capital early Friday.

South African doctors announced Friday that they had performed the world's first successful penis transplant, three months after the ground-breaking operation.

The 21-year-old patient had his penis amputated three years ago after a botched circumcision at a traditional initiation ceremony.

Ten more people have died in Saudi Arabia from the MERS virus since last week, health ministry data showed on Friday, adding to a surge in cases over the past month.

The latest deaths occurred between March 6 and 12, mostly in the capital Riyadh, bringing to 17 the number of MERS deaths so far this month, according to the ministry.

The global death toll from the Ebola outbreak centered in west Africa has topped 10,000 out of more than 24,000 recorded cases, the World Health Organization said Thursday.

Almost all the deaths and cases have been reported in the three west African countries worst hit by the outbreak: Sierra Leone, Liberia and Guinea.

A German biologist who promised to pay 100,000 euros to anyone who could prove that the measles was indeed a virus was ordered by a court on Thursday to hand over the money.

The man had made the promise in 2011 on his website, saying anyone who could offer scientific proof of the existence of the virus would receive the $106,000 reward.