Each outbreak has some lessons to teach to those involved in health crisis management, especially in terms of risk communication. In fact, any infectious disease can become much more dangerous when supported by wrong or missing information. On the one hand, misinformation can spread far and fast, especially online, often crossing geographic borders before local organisations have ramped up their response to an outbreak. On the other hand, the lack of proper information about, for instance, how people get infected, may slow down efforts to contain the diffusion of the disease.