What it takes to vaccinate the world

With Covid-19 vaccinations preparing to roll out, how do we make sure everyone gets it? John Johnson, a vaccine programme co-ordinator for Doctors without Borders, outlines just how much is involved in getting vaccines, by truck, motorbike and even foot, to every town and village in the developing world. The Covid-19 vaccine, like others, needs to be transported below a certain temperature, adding an extra layer of complexity, as Toby Peters from the University of Birmingham explains. But David Elliot, of Dulas Solar, says technology like their solar-powered refrigerators can help solve the problem in sub-Saharan Africa. Rebecca Weintraub, Faculty Director of the Global Health Delivery Project at Harvard University, is enthusiastic that the world’s institutions can come together to co-ordinate the task. Producers: Frey Lindsay and Joshua Thorpe. (Picture: A Malaria vaccine implementation pilot programme in Malawi, April 2019. Image credit: AFP via Getty Images)