Experts will gather in Geneva this week to review progress on possible vaccines against the deadly Ebola virus, the World Health Organization said Wednesday.

The international health community is desperately trying to find a vaccine to fight the virus, which continues to rage in west Africa where it has killed more than 8,200 people.

U.S. pharmaceutical giant Johnson & Johnson said Tuesday that it has started human trials on a possible vaccine against Ebola.

The Phase I testing is being carried out by the Oxford Vaccine Group at Britain's Oxford University. 

Syria is facing a "medical and humanitarian disaster" after nearly four years of war have gutted the country's healthcare system, leading to a return of eradicated diseases, a group of Syrian doctors said in Paris Monday.

A lack of doctors, supplies and drugs have plunged the country back into the medical dark ages, with polio and scabies back with a vengeance as many children are no longer vaccinated, while the majority of births take place at home.

People who eat more whole grains are more likely to live longer and avoid heart disease, but such a diet does not affect risk of dying from cancer, said a U.S. study released Monday. 

The findings by researchers at Harvard University appear in the Journal of the American Medical Association (JAMA) Internal Medicine.

People who are obese may appear healthy for a while but their condition declines over time, said a study out Monday that followed more than 2,500 people for 20 years.

The research by scientists at University College London is the longest of its kind, and its findings support previous research that has shown people who are overweight face a higher risk of heart attack, stroke and some kinds of cancer than thin people as the years go on.

Schools in Ebola-ravaged Liberia will reopen in February, six months after they were closed in a bid to contain the spread of the killer virus, the education ministry said Monday.

"We ask all schools to take the necessary measures for the reopening of schools next semester, which is February," the ministry said in a statement read out on the radio.

Older men with prostate cancer may live longer if they receive a combination of radiation and hormone therapy, but many men do not get the right treatment, U.S. researchers said Monday.

The dual therapy saved nearly 50 percent more lives among men aged 76 to 85 with locally advanced prostate cancer, compared to those who received hormone therapy alone, said the findings in the Journal of Clinical Oncology.

Travelers coming to the United States from Mali will no longer be required to undergo extra screening at selected airports for potential exposure to Ebola, U.S. authorities said Monday. 

On Tuesday, the West African nation will mark 42 days -- or two full incubation cycles -- since the last Ebola patient in Mali had contact with anyone who was not wearing protective gear, the Centers for Disease Control and Prevention said.

"The condition of Pauline Cafferkey has gradually deteriorated over the past …

A British nurse with Ebola was fighting for her life Sunday as two health workers, who also spent time in Sierra Leone, were placed under observation in the U.S. and Germany.

The Ebola lockdown in the northern Tonkolili district of Sierra Leone was extended on Sunday for two weeks as authorities stepped up the fight to contain the epidemic.

The move comes as the government imposed "additional screening measures" at Freetown International Airport after two workers apparently caught the disease.