Medically reviewed by Jordana Haber Hazan, MD Key Takeaways PCR tests are very accurate and can find the virus even in people without symptoms.Rapid tests can be done at home and show results in ...

Over the past four years, many of us have become accustomed to a swab up the nose to test for COVID-19, using at-home rapid antigen tests or the more accurate clinic-provided PCR tests with a longer ...

Because of its high accuracy, laboratory-based polymerase chain reaction (PCR) testing is the gold standard for infectious disease diagnostics. However, PCR technology requires highly trained staff ...

PCR swab tests that look for viral RNA have become the gold standard for identifying infection with the SARS-CoV-2 virus, but their results aren't 100% accurate. Researchers report that testing for ...

It's been nearly four years since people started getting sick with COVID-19, but with new variants mutating each season, the health steps experts asked us to take at the beginning of the pandemic ...

At-home coronavirus screening has become a way of life for many Californians, but some medical experts are now cautioning that one test may not be enough to definitively determine whether someone is ...

Researchers have developed a working prototype of a PCR test for monkeypox that provides accurate, easy-to-read results The test works with a compact, portable system developed for COVID-19 ...

Ducharme is a contributor to TIME. Ducharme is a contributor to TIME. For Rachel Robles, getting diagnosed with Long COVID was an uphill battle. She caught the virus in March 2020, when nearly nothing ...

A new diagnostic tool developed by researchers can test for SARS-CoV-2 and Zika virus with the same or better accuracy as high-precision PCR tests in a matter of hours. Over the past four years, many ...

Over the past four years, many of us have become accustomed to a swab up the nose to test for COVID-19, using at-home rapid antigen tests or the more accurate clinic-provided PCR tests with a longer ...