A 1905 Supreme Court case resulting from a smallpox outbreak empowered states to pass laws for the "health, peace, morals, education and good order of the people." So yes, you have to wear that mask.

The current “not my child” anti-vax mindset of some parents couldn’t be further from the national effort of coming together to fight diseases in the mid-20th century.

A roundup of some of the stories we're reading this morning at Moyers & Company HQ.

Use an interactive map from the Council on Foreign Relations to plot vaccine-preventable outbreaks around the world.