We track four people on their journey.
Zika virus: 'We have more questions than answers'
Could Guinea worm, a deadly parasite that has plagued humans for centuries, be eradicated in the next year?
19 Nov 2014 10:15 GMT
Health, Africa, South Sudan, Diseases
Can prawns stop a massive outbreak of the killer schistosomiasis (bilharzia) parasite in Senegal?
19 Nov 2014 10:13 GMT
How can health workers rid the world of malaria, a disease that kills a child every minute?
19 Nov 2014 10:11 GMT
What is causing hundreds of thousands of people to go blind in Ethiopia?
19 Nov 2014 09:54 GMT
A look at how the health and agriculture departments in the Philippines have teamed up to eliminate the disease by 2020.
19 Sep 2013 08:17 GMT
Meet the scientists at 'Mosquito city' who are using unusual and innovative methods to tackle malaria.
13 Aug 2014 07:27 GMT
A man from a leprosy colony in India talks about the difficulties he has faced since being diagnosed with the disease.
23 Sep 2014 09:01 GMT
Al Jazeera World follows the everyday lives of Aleppo residents living amid the ongoing conflict and destruction.
A look at the ancient roots of food and the unrest simmering over rising cost of staples before Egypt's 2011 uprising.
We investigate the sinister and mysterious murders of some of Uganda's leading Muslim clerics.
Doctors in Ethiopia walk from village to village to help eradicate eye disease that can lead to permanent blindness.
Activist Maryam al-Khawaja in debate with Mansoor al-Arayedh, the chairman of the Gulf Council for Foreign Relations.
Human Rights, Bahrain, Arab Spring
As the WHO investigates the massive outbreak of microcephaly in Brazil, we travel to ground zero of the epidemic.
Health, Latin America, Brazil
Hundreds of Cambodian journalists make a living by uncovering news and then extorting bribes to bury the story.
Media, Journalism, Cambodia
How will improving relations between communist Cuba and the capitalist US affect the lives of people on both sides?
Politics, United States, Cuba