Advocating for vaccination in a climate of science denial Nature Microbiology, Published online: 27 June 2017; doi:10.1038/nmicrobiol.2017.106 In many countries, the success of misinformation, alternative facts or fake news is promoting a climate of science denial, where false claims such as vaccination causing autism can spread. Learning lessons from behavioural studies can help advocate for vaccination in the face of vaccine refusers and deniers.