SAN FRANCISCO -- With the Delta variant and breakthrough cases of COVID-19 reported, some vaccinated people are wondering when, if at all, they should get tested. Health officials say there are at ...

Do I need to get tested for COVID-19 if I'm vaccinated? The answer is, yes, if you've been around someone who has COVID-19. The latest guidance from the U.S. Centers for Disease Control and Prevention ...

Earlier in this pandemic, the shortage of tests for the coronavirus was a major problem in fighting the spread of COVID-19. The shortage was such that many hospitals and clinics would test only ...

NEW YORK -- So many families gathered this weekend, but COVID-19 didn't hide as Santa Claus was coming to town. The U.S. is now averaging 198,404 new coronavirus cases each day as of Sunday, the day ...

Ohio is a hotspot for respiratory illnesses, including COVID-19 and a new flu strain. Health officials advise staying home until you are fever-free for 24 hours and symptoms improve. COVID-19 ...

As COVID-19 cases in Saskatchewan climb, several people say they are frustrated with the amount of time it's taking to get tested for the virus. The Saskatchewan Health Authority scaled back testing ...

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

It's that time of year again where you may be asking yourself if your sore throat is the flu, a cold or a case of COVID-19. Though health officials still recommend testing for COVID-19 if you're ...

Over 75% of Californians are now fully vaccinated, and over 58% have received their COVID booster shot. But widespread breakthrough infections in fully vaccinated people and the recent rise in COVID ...