The World Health Organisation (WHO), government health departments and others are trying to alert people to these myths. It’s also the case when we still don’t know how many people are likely to become sick, have a life-threatening illness or die. To avoid our efforts backfiring, we need to know how to do this effectively and constructively. ); and being honest enough to admit when you don’t know, and even more importantly, when you are wrong. They might become aware of what they don’t know or of how unlikely their information sounds.