How the fear of death drives vaccine refusal and COVID-19 denial

Vaccines save lives, and have been doing so since the development of the smallpox vaccine more than 200 years ago.

However, for vaccines to keep entire communities safe they need to be taken up by very large proportions of the population. Only then can the vaccinated offer protection to the unvaccinated via herd immunity.

Unfortunately, too often this doesn’t occur.

Hesitancy around the measles vaccine, for