We track four people on their journey.
We explore the new US-Cuba relationship
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
Conservationists are in a desperate and uphill battle to save India's tigers from extinction.
Former classmates separated during Iraq's invasion of Kuwait in 1990 reunite decades later.
We follow a Sesame Street composer as he learns how his music has been used to torture detainees at Guantanamo Bay.
Doctors in Ethiopia walk from village to village to help eradicate eye disease that can lead to permanent blindness.
How improving relations between communist Cuba and the capitalist US will change the lives of people on both sides.
Politics, United States, Cuba
Mayotte is a magnet for Comoros islanders who risk their lives crossing hazardous seas in search of a better life.
Poverty & Development, France, Refugees
The WHO has declared the spread of the Zika virus a global public health emergency, so how big a threat is the virus?
Health, Zika virus, US
A three-part series looking at the history of France's black community and their long struggle for recognition.
Politics, US & Canada, France