2020 was a big year for Fauci – but he's been on the national stage for decades. Here's more about his work before COVID-19 and why he was perfectly poised to help the US respond to the pandemic.

Whether in situations relating to scientific consensus, economic history or current political events, denialism has its roots in what psychologists call 'motivated reasoning.'

Since the state's first coronavirus case surfaced, trained case investigators have traced the contacts of every person who tested positive. Here's what else South Carolina got right.

A simple head-to-head trial would resolve this conflict once and for all.

Expanding coronavirus testing is one of the most important tasks public health officials are tackling right now. But questions over accuracy of the two main types of tests have rightly caused concern.

Human psychology has evolved to avoid situations that could lead to infection. Behavioral choices now could have long-term effects on how people interact with others and the world.