Explore the measles theme on iwonder. Measles, a vaccine-preventable disease, was eliminated from the US in 2000, but the spread of online misinformation about vaccines has led to its return. It has led to a public health crisis that has resulted in more than 800 cases in at least 20 states. This documentary provides an insight into how officials are battling on the the front lines of the measles crisis while waging online “info-wars” against the anti-vaccine movement’s misinformation.