Thousands of women are infected with HIV every week in Africa. Many can't persuade their partners to wear a condom, so it was hoped that a new form of protection could be a real game-changer.

It's a small silicon ring which encircles the cervix and releases antiretroviral drugs, lowering the women’s risk of contracting HIV. Their partners aren't supposed to feel it, and so shouldn't even need to know it’s there.

People Fixing the World first reported on the HIV ring five years ago. We find out what’s happened since.

Presenter: Myra Anubi

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