Vaccine mistrust is on the rise. And when US President Donald Trump's new cabinet met for the first time last week, all eyes were on the new Health and Human Services Secretary, Robert F Kennedy Jr who has long been known as a vaccine sceptic. With doubts about vaccines increasing in many parts of the world, will his appointment have an effect on the way vaccinations are viewed globally?

Presenter Jonny Dymond speaks to Jim Reed, a BBC health reporter and Dorcas Wangira, the BBC’s Africa Health Correspondent, in Nairobi.

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Producers: Alice Aylett Roberts, Eleanor Sly and Tom Kavanagh

Sound engineer: James Piper

Assistant editor: Sergi Forcada Freixas

Senior news editor: China Collins