Yemen Hospital Hit by Air Strikes

The conflict in Yemen claimed more lives on Monday - a medical facility run by Medecins Sans Frontieres was bombed in the north of the country killing at least 11 people.

People living in a suburb just outside Syria's capital Damascus say their government is using the chemical weapon napalm against them.

Yellow fever, a potentially deadly disease which is spread by mosquitoes, is endemic in many countries in Africa and South America. But after recent outbreaks in Angola and the Democratic Republic of Congo, and a shortage of global stocks of vaccine, could this become a global problem.