Migrant caravans won’t bring disease — anti-vaxxers will

Yesterday, a guest on Fox News claimed that migrants traveling toward the US will “infect our people” with smallpox, leprosy, and tuberculosis. He did not cite evidence to support this claim, because there is none — and available evidence suggests that when it comes to public health, we have more to worry about from anti-vaxxers than from immigration.This isn’t to say that there is never any risk of infectious disease from migration. The Centers for Disease Control and P