Micro RNA wins Nobel

The discovery of Micro RNA has won the Nobel Prize for medicine. We learn more about what micro RNA is, how it contributes to gene regulation, and what that means for our health.Also on the programme, there has been an outbreak of Marburg virus in Rwanda, and the pharmaceutical company Gilead is making a revolutionary HIV medication available to countries that need it most. But does this good news story have an unexpected downside. We learn more on Health Check.