COVID-19 rapid tests are easy to take—and then toss. So most people never report their results, which leaves health officials with an incomplete picture of how much virus is circulating and where. The ...

COVID-19 is a disease caused by the SARS-CoV-2 virus. It most often causes respiratory symptoms that feel like a cold, flu or pneumonia. Most people who catch COVID-19 have mild symptoms, but some ...

After a recent COVID-19 exposure, Dr. Christina Astley tested positive on an at-home test—but just barely. The line signifying a positive result was so faint that Astley, an endocrinologist at Boston ...

What do the moment you end up with a positive COVID-19 self-test, according to an epidemiologist and government officials. If you want to figure out your COVID-19 status in the comfort of your own ...

COVID-19 tests used to be able to detect a positive case within the first 48 hours, but many results are now delayed until four days after symptoms appear, according to the LA Times. Elizabeth Hudson, ...