You can order a COVID-19 test online through DoorDash and get same-day delivery. Here's how to do it.

Currently available COVID-19 tests, including PCR tests, are designed to detect any version of SARS-CoV-2, and are not specific for different variants. When should I use an at-home test?

The Biden administration has partnered with Google to help people locate free COVID testing sites. In this photo, a lab technician is working on smears for PCR tests for COVID-19 during the ...

COVID tests are in short supply, but it's still possible to find some, including for free. Here's what to look for, and how to get an accurate result.

There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Here are the differences.

A PCR test is considered the gold standard for detecting coronavirus infection after exposure to Covid-19 or while you’re experiencing symptoms. Coronavirus test experts explain why the rapid ...

Generally speaking, molecular coronavirus tests catch more than seven out of every 10 COVID-19 infections they hunt down. Here's how these real-time RT-PCR* tests actually work, from start to finish: ...

Infectious disease expert Dr. Mark Kortepeter explains the pros and cons of at-home Covid diagnostic tests and how to interpret the results.

PCR tests, however, are processed in labs and can take 24 to 48 hours to get a result.