We talk a lot about herd immunity -- so how does it work, and what happened in other places around the world that have tried to use herd immunity as a strategy?

Hiding in the unemployment statistics is the rising number of people who are experiencing long-term unemployment -- they've been out of work for 27 weeks or more.

A ton of information has been sent out about voting by mail, along with a lot of disinformation. So what's true, what's not, and what do you need to know?

Towns and municipalities are grappling with some extremely hard decisions if Washington doesn't send relief soon. 

Ever feel like ads you see online are almost designed specifically for you?

Before the coronavirus pandemic, childhood obesity was one of the most complicated health challenges of our time -- and now public health researchers worry the crisis has deepened.

From telemedicine to home monitoring, the coronavirus pandemic has accelerated healthcare innovation in several key ways that are here to stay.