Social listening in the context of vaccination entails mechanisms put in place to understand the information needs of people, their concerns, and the knowledge gaps they have in relation to vaccines – that is, social data. It also supports the tracking and response to online and offline misinformation, whose negative impacts have been widely studied – most recently during the COVID-19 pandemic, as studies such as this one show. But the need to listen to people before rumours spread like wildfire harkens back to earlier disease outbreak challenges – especially polio. This Drum Beat shares some resources, experiences, and strategies around the use of social listening in the context of polio, immunisation, and vaccines.