Anti-vaxxers, flat Earthers, 5G arsonists and climate change deniers – why have so many people given up on science and where are governments, scientists and the media going wrong?

As Covid-19 continues to affect us all, what is the best way to communicate public health messages, when the bottom line is saving lives? Umaru Fofana reports from Sierra Leone on the Ebola prevention and vaccine campaigns and former BBC science correspondent, Sue Nelson, speaks to public health experts and fact checkers about efforts to combat misinformation.

(Photo: Pupils look at an Ebola prevention poster during a sensibilisation campaign provided by United Nations Development Programme (UNDP), in Abidjan. Credit: Sia Kambou/AFP/Getty Images)