Author: Patrick J. Lyons

A crop of new studies suggests that herd immunity is still very far away.

For some Americans, the biggest concern is the threat they feel from other people’s irresponsible behavior.

Quicker lockdowns would have headed off the worst exponential growth in cities like New York and New Orleans, researchers say.

Flooding and a cyclone complicated efforts to keep people safe from the virus.

A vaccine produced by Moderna appeared to be safe and effective in its first human trial.

A top government scientist and whistle-blower told Congress that the Trump administration failed to heed early warnings about the virus.

More Americans are leave their homes, even in states that haven’t reopened yet.

Top U.S. health officials testified before Congress and warned that the country was a long way from containing the outbreak.