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.
The World Health Organisation is concerned many people were exposed to the two-year-old girl who was Mali's first confirmed Ebola case.
With the death rate at 70%, new strategies, resources and tough targets are being put in place.
With almost 50% of homeless people suffering from mental illnesses, according to a study, we spoke to four people who live on Durban's streets.
Tests on new experimental drugs to treat the Ebola virus, which has claimed 3000 lives this year, is being welcomed.
As healthcare systems collapse from the strain, the race is on to find a treatment that works.
The influx of people needing to be treated for Ebola has put strain on health services in West Africa, with workers having to turn patients away.
A new map has shown that more regions in Africa are at risk of animal-related Ebola infections than previously feared.
Health experts have met to discuss an end to killer virus Ebola, with two vaccines and eight experimental treatments on the table.
The DRC has confirmed its first Ebola outbreak in 2014, but claims it's unrelated to the epidemic. It comes as the first UK case is also confirmed.
The World Health Organisation, which has been criticised for its response to Ebola, has revealed its strategy for halting the epidemic in West Africa.
The International Air Transport Association claims bans of flights out of countries suffering the spread of the disease are unnecessary.
Sierra Leone has doubled its death toll from the Ebola virus, saying it had 109 suspected cases and a further six people dead.
Air pollution is responsible for one in eight deaths worldwide, says the WHO, and is now regarded as the biggest environmental health risk.