Fewer than a quarter of U.S. children prescribed medication for attention deficit hyperactivity disorder (ADHD) get the recommended behavioral therapy along with it, said a study out Monday.

The findings in the Journal of the American Medical Association (JAMA) Pediatrics examined records of more than 300,000 children from 1,516 counties across the United States who had received an ADHD prescription.

The number of Ebola infections will triple to 20,000 by November, soaring by the thousands every week if efforts are not significantly stepped up to stop the outbreak, the WHO warned Tuesday.

"Without drastic improvements in control measures, the numbers of cases of and deaths from Ebola are expected to continue increasing from hundreds to thousands per week in the coming months," the World Health Organization said in a study.

To Ghana's legions of jobless young men, Eric Bimpong has a money-making proposition: sell your blood.

Bimpong spends his days outside schools, bars and on the streets of poor neighborhoods in Accra, scouring for teenagers and 20-somethings to give blood outside the capital's largest hospital.

Asian Games organizers prevented a potential mass outbreak of food poisoning after salmonella was detected in lunch boxes prepared for athletes, officials said on Monday.

The bacteria was found Sunday in meat included on boxed meals provided by a food caterer.

Millions of Sierra Leoneans were set to emerge from their homes on Monday after a three-day nationwide lockdown during which scores of dead bodies and new cases of Ebola infections were uncovered.

The west African country had imposed the extreme measure confining its six million people to their homes for 72 hours in a bid to stem a deadly Ebola outbreak which has claimed more than 2,600 lives there and in neighboring Liberia and Guinea this year.

Pope Francis has called for more people to donate their organs in a bid to stop illegal trafficking, but spoke out against the legalization of the organ market, Rome's mayor said Saturday.

"The pope authorized me to say that in his view organ donation through generosity must be encouraged, but the commercial use of organs is immoral," mayor Ignazio Marino said, after meeting with Francis on Friday.

The mosquito-borne virus known as chikungunya has sickened nearly 500,000 people in the Dominican Republic, including 109 newborn babies, an official with the Caribbean country's health ministry said Friday.

The virus was transmitted to the newborns by their mothers, who had the illness when they gave birth, said Carmen Adames, who is coordinating the Health Ministry's response to the outbreak. None of the infants died, she said.

U.S. troops heading to Liberia to help fight the Ebola epidemic will help train health workers but will have no "direct contact" with patients infected with the virus, the Pentagon said Friday.

The 3,000-strong contingent due to deploy to Liberia will be focused on training health workers in the country and setting up facilities to help West African countries tackle the crisis, spokesman Rear Admiral John Kirby told a news conference.

A Chinese court on Friday fined British drugmaker GlaxoSmithKline 3.0 billion yuan ($490 million) following a nearly year-long bribery probe, the company said.

The firm's former head of China operations, Mark Reilly who would be deported, and four other ex-officials were given suspended sentences of between two and four years in prison, the official Xinhua news agency said.

With some 76,000 Nigerian Muslims expected this year at the hajj in Saudi Arabia, organisation was always going to be a major logistical undertaking.

But after more than 2,600 deaths from Ebola in West Africa this year, including eight in Nigeria, the authorities have had to put in extra security measures to allay fears about its possible spread outside the region.