This man needs to trust you before listening to your public health message. No wonder bombarding him with facts doesn’t always work.
Reassuring people "not to worry" about public health issues like vaccination or fluoridated water doesn't work. Nor does telling people "don't panic". So, what does?
If someone is spouting pseudo-science, should scientists risk legitimising them by getting into a debate with them?
Some scientists refuse to debate or appear with those they consider to be unscientific. But is this the best approach to combat anti-science narratives?
Protecting the herd means a certain proportion of the population has to be immunised.
When a high proportion of a community is immune it becomes hard for diseases to spread from person to person – a phenomenon known as herd immunity.