For instance, if you only get a very faint line, it might be hard to know whether or not that means your results are positive. I know how that feels firsthand. After more than two years of evading ...

Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

How do rapid antigen COVID-19 tests work? Why did the US government just pledge to buy 280 million of them? And is that even enough to help curb the spread of the virus? As part of President Biden’s ...

The last thing most of us want to do is unknowingly get another person sick with COVID-19, but heading into the doctor’s office to get tested can be inconvenient. But just how accurate are the rapid, ...

Rapid COVID tests are convenient and easy to use because you can take them at home. But it's important to know how to interpret their results, when you should take another rapid test and when you ...

Viral TikTok videos showing teenagers hacking rapid COVID-19 tests by inserting sodas and other acidic solutions into the tests’ inlet caused quite a stir in 2021, especially in the UK, where these ...

The announcement came last week with the White House signaling a billion-dollar investment in at-home rapid coronavirus tests. It also said 20,000 pharmacies across the country would offer free ...

Polymerase chain reaction (PCR) tests were the first available for spotting the coronavirus. They work by detecting the virus’s genetic material, and are very accurate. Then came rapid tests, also ...

With Covid-19 cases up across the country, many people are once again relying on home tests to guide decisions about going to work and sending their kids to school and other activities. A lot of those ...

The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. As winter begins and the holidays are in full swing, the COVID-19 pandemic ...