united states
Latest about united states

COVID-19 was spreading in the US by December 2019, mounting evidence suggests
By Rachael Rettner published
The new findings suggest the virus may have been circulating in Illinois as early as Dec. 24, 2019.

What was the deadliest day in US history?
By Benjamin Plackett published
It's impossible to know for sure the deadliest day in U.S. history because you can end up comparing apples with oranges.

Inauguration day: Why presidents must wait 2 months to start
By Kacey Deamer published
Here's why inauguration day occurs months after an election.

UK coronavirus variant could become dominant US strain by March, CDC says
By Rachael Rettner published
Strict measures will be needed to prevent it from taking over.

How does impeachment work?
By Stephanie Pappas published
Will President Trump be impeached? Here's a look at what impeachment means, how it works and who has been impeached.

What is a coup?
By Mindy Weisberger published
A coup d'état, which translates as "stroke of the state," can be triggered by military actions, the involvement of foreign governments, or popular revolts.

1st wild animal in US infected with SARS-CoV-2 found in Utah
By Nicoletta Lanese published
A wild mink just tested positive.

When will COVID-19 vaccines start to make a difference?
By Nicoletta Lanese published
A new model projects how case rates, hospitalizations and deaths will fall as COVID-19 vaccinations begin.
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