As Covid-19 numbers reach pandemic lows across the United States, many Covid-19 testing sites have begun closing their doors.
Some testing sites have been open...
Mental health concerns among high school students in the United States were exacerbated during the Covid-19 pandemic, according to survey results published Thursday by the US...
The Omicron coronavirus variant may be reaching around the world, but different places are seeing significantly different effects.
In the United States, Covid-19 case numbers...