Add Yahoo as a preferred source to see more of our stories on Google. As the federal health emergency ended May 11 and COVID numbers are on the rise, here’s how you can still access tests, at-home and ...

Researchers often call the polymerase chain reaction test – known as the PCR test – "the gold standard" for detecting the COVID-19 virus. The test is considered highly reliable and effective, and it ...

Though they’re not perfect, at-home tests will detect infections about 80% of the time, according to the U.S. Food and Drug ...

With Covid on the rise once again, you may find yourself reaching for an at-home test for the first time in months. Covid activity is picking up, with hospitalizations increasing in recent weeks, ...

There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Each method is best for a different stage of COVID-19 infection. Used in sequence, all three methods ...

A new program from eMed and the NIH offers free tests and treatments, and you don't even need to leave your home.

Amid a rise in COVID cases and the start of fall allergies, flu and RSV season, experts say testing is an important tool heading into the cooler month. With more people testing positive for COVID once ...

This decision, well within current norms for care, was nonetheless consequential: The president was forced to cancel a trip to advocate for legislation in support of the domestic semiconductor ...

A study led by Osaka University recently found that the sensitivity of rapid antigen tests (RATs) for the Omicron variant of COVID-19 when compared with polymerase chain reaction (PCR) tests was 0.63 ...

You wake up with a scratchy throat, runny nose, and persistent cough, but your at-home COVID-19 test reads negative. How is this possible? The short answer is yes—you can still be infected. Many other ...