During the COVID-19 pandemic, at-home tests became standard operating procedure for many households. In just 15 minutes, with a quick swab and a stir, we felt more confident visiting elderly family ...

The alarming spread of omicron subvariants — particularly BA.5, which has quickly become the dominant coronavirus strain in the U.S. — has again put a spotlight on how well COVID-19 rapid antigen ...

More than two years after the World Health Organization (WHO) declared an end to the emergency phase of the Covid-19 pandemic, the virus continues to circulate globally. While current data suggest ...

A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease. People can use a rapid COVID-19 test at home ...

A prospective cohort study has found that repeat testing in 48-hour intervals with a rapid antigen test (Ag-RDT) may be required to rule out SARS-CoV-2 infection. This means that people testing for ...

Adding a throat swab specimen to a nasal specimen significantly increased sensitivity of COVID-19 rapid antigen tests, whether self-collected or collected by a healthcare worker, a randomized clinical ...

The question quickly arose whether existing rapid antigen tests could detect newly emerging variants. Using clinical samples obtained from diagnostic labs throughout the U.S. from 2020 to 2023, the ...

The CLINITEST Rapid COVID-19 Antigen Self-Test has received FDA EUA for unsupervised self-testing for the SARS-CoV-2 virus by individuals age 14 and older (or adult-collected samples from individuals ...

As we head into winter, you may have a sniffly child under two years old at home. Is it just a cold? Or could it be COVID? You may be tempted to reach into the cupboard for a rapid antigen test to ...

The potential for IgM cross-reactivity with rheumatoid factor–positive serum samples was observed in blood tests used to detect IgM SARS-CoV-2 by means of gold immunochromatographic and enzyme-linked ...