SAN FRANCISCO -- There has been a lot of talk about testing for the coronavirus, but you may not entirely understand what the different tests are for. The coronavirus makes some people sick, some ...

New COVID-19 cases continue to crop up nationwide as new variant XFG makes gains both domestically and abroad. Some regions of the United States are experiencing higher rates of positive COVID-19 ...

The federal government program that mailed free at-home COVID-19 tests to households is no longer active. Some insurance providers may still cover the cost of at-home tests, and free tests may be ...

How Canada can avoid past mistakes as public health measures ease. People say they want COVID-19 to become 'endemic.' But what does that really mean? Several jurisdictions across the country outlined ...

You mentioned in a recent column that prospective randomized controlled trials (RCTs) are a powerful type of study. Can you ...

Ugh, in case our allergies weren't bad enough.

If the Thanksgiving weekend felt colder than usual, you're not wrong. Sacramento experienced its coldest November since 1985. That means even more time indoors during an already cozy holiday season.