The Washington PostDemocracy Dies in Darkness
As of late February, people have tested positive for the coronavirus in more than 40 countries. Officials are taking "unprecedented" actions. (Video: The Washington Post)

Oregon coronavirus infection becomes third case of unknown origin in U.S.

A northwest Oregon resident has tested positive for coronavirus with no known history of travel to countries severely affected by the outbreak and no known contact with infected individuals, state health officials said Friday.

The case, in Washington County, marks the third case of unknown origin in the United States and indicates that the virus is spreading. It is also the first coronavirus case in Oregon.  

Coronavirus: What you need to know

Covid isolation guidelines: Americans who test positive for the coronavirus no longer need to routinely stay home from work and school for five days under new guidance planned by the Centers for Disease Control and Prevention. The change has raised concerns among medically vulnerable people.

New coronavirus variant: The United States is in the throes of another covid-19 uptick and coronavirus samples detected in wastewater suggests infections could be as rampant as they were last winter. JN.1, the new dominant variant, appears to be especially adept at infecting those who have been vaccinated or previously infected. Here’s how this covid surge compares with earlier spikes.

Latest coronavirus booster: The CDC recommends that anyone 6 months or older gets an updated coronavirus shot, but the vaccine rollout has seen some hiccups, especially for children. Here’s what you need to know about the latest coronavirus vaccines, including when you should get it.