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Half of the world's population don't have access to essential healthcare, according to the World Health Organisation. And even in highly developed countries many still lose out. This week on People Fixing The World we hear about some ideas that aim to change that. We jump on board a hospital train that travels around South Africa providing affordable treatments to remote communities. And we step into a truck in a British supermarket car park, which is catching early cases of lung cancer when it鈥檚 much more treatable.

Presenter: Myra Anubi
Producer/reporter: Claire Bates
South Africa reporter: Mpho Lakaje
Editor: Jon Bithrey
Sound mix: Andrew Mills

(Image: Patients waiting outside the hospital train, Getty Images)