Everyone wants to host mega-events despite the cost and other problems, such as terror attacks.
But this does not include nuclear material left over from mining aborted about 40 years ago.
The World Health Organisation has recommended that people potentially exposed to the Zika virus should practice safe sex.
New Australian research reveals a solution to 1-2 million tonnes a year of cigarette butt waste, which is leaching heavy metals into the earth.
The Elders say everybody is entitled to decent, affordable medical attention.
With just nine cases of the virus so far this year – in Pakistan and Afghanistan – the WHO is confident the battle against polio is nearly won.
Economic exploitation in the developing world has resulted in under-resourced and weak health systems that could not contain the spread of viruses.
Tuberculosis kills more people than HIV. Show your support for people with TB by joining the WHO’s Unmask Stigma Challenge on World TB Day.
Cape Verde, which recorded 22 suspected cases of Zika in the first week of March alone, has reported its first case of microcephaly.
The WHO has dispatched an expert team to southern Guinea after new cases of Ebola surfaced there.
Health authorities say the visitor diagnosed with the mosquito-spread virus has recovered and there is minimal likelihood of a local outbreak.
Migraine hits one in 10 people, resulting not only in pain but costs the world economy billions.
Following harsh criticism of its handling of the Ebola outbreak last year, the organisation says it will up its game in dealing with future crises.
This success in saving lives may be offset by the Ebola outbreak, and the UN agency warned of factors that might reverse the progress being made.
Personal accounts from Liberia and Sierra Leone bring home the devastation wrought by the virus.
If the health minister has his way, vaping will soon be regulated like regular smoking because, he says, Big Tobacco is complicit in its rise.
Which doctors want to work in the remote areas of South Africa? Mostly those who grew up there.
Mali has placed a total of 577 people under observation after two people died from the deadly virus in the capital Bamako.