Dangerous anti-vaccine tweets have spiked—from rich people in just 5 states

Enlarge / LOS ANGELES, CA – APRIL 14, 2015: Kathleen Miller, 46, right, with her children at a rally of parents and teachers who oppose efforts to end the personal belief exemption on vaccinations. (credit: Getty | Irfan Khan) The noxious clamoring of a privileged minority has grown louder on Twitter—imperiling public health, a new […]