RSV tests include nasal swabs or blood tests to detect the virus's genetic material or antibodies, but rapid tests provide quick results.

The three had never met in person, but they shared a common goal: To create an open-source, do-it-yourself PCR test (the gold standard among Covid tests).

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

If a rapid test produces a negative result but you have a cough, fever or other symptoms, the CDC recommends you also do a PCR test.

Each household is eligible for four at-home COVID tests, though those who did not take advance of September's round can get up to eight.

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

If you do not have symptoms but have been exposed to COVID-19, wait at least 5 full days after your exposure before taking a test. If you are only going to take a single test, a PCR test will ...

Syndromic multiplex PCR tests offer a timely, cost-effective solution in the fight against pathogens — a potentially crucial tool as climate change and other challenges increase the burden of ...