More Than Facts

For anti-vaxxers and others with entrenched beliefs, facts alone are not enough to sway their positions. But what followed California’s 2014 measles outbreak may give a clue as to what can.

When pro-vaccine advocates and legislators made the case for statewide mandatory vaccinations in 2015, they used a mathematical model called FRED Measles to simulate how an outbreak would unfold in counties with 20% of schoolchildren unvaccinated. Lawmakers previously on the fence were convinced of the policy’s value.

Mandatory vaccinations for students became law a year later, bringing immunization rates to an all-time high and boosting school enrollment.

Source: FiveThirtyEight

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