BY THE NUMBERS

65

The minimum age of the cohort most likely to share fake news on social media, according to research published in the journal Science Advances in January 2019.

45

The percentage of Americans who think global warming will pose a serious threat in their lifetimes, according to a 2018 Gallup Poll.

1772

The year English vicar Edmund Massey delivered a sermon entitled The Dangerous and Sinful Practice of Inoculation, becoming the first recorded anti-vaccination campaigner.

500

The percentage increase in demand for measles vaccinations in fiercely anti-vax Clark County, Washington, following 61 confirmed or suspected cases of the disease since 1 January 2019.