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

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 ...

Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would take a COVID test using one of my rapid home PCR tests. It was a courtesy—he felt perfectly fine— ...

By providing quantitative information about Covid-19 infection, PCR testing can help guide isolation and return to school or work policies.

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 ...

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 ...

The COVID-19 pandemic has seen the rise and fall of many variants, but nothing like BA.5. Previous subvariants of omicron have caused cascading surges as they outcompeted each other; now, BA. 5 is the ...

You can exhibit COVID-19 symptoms yet test negative due to early infection, low viral load, or immune response. PCR testing ...

Respiratory syncytial virus (RSV) was detected easiest when using reverse transcription polymerase chain reaction (RT-PCR) tests in a pediatric population.

PCR-based West Nile virus testing using whole blood was effective and favored compared with plasma testing as an initial test for infection, researchers reported.

The PCR test is designed to detect all non-smallpox-related orthopoxviruses, a group that includes cowpox, horsepox and camelpox, along with monkeypox.

BEIIJING — Travelers entering China will no longer need to provide a negative PCR test result starting from Saturday, in another easing of China’s “zero-COVID” policies. Travelers can instead show a ...