New year, new variant. As 2022 gets under way, omicron, a fast-moving version of the virus that causes COVID-19, is well into its march across the world. As of January 11, a record-breaking total of ...

There is a growing debate on whether people testing for omicron should swab their throats. Most people in the U.S. have been doing COVID-19 rapid tests with nasal swabs. That is what the Food and Drug ...

Can you test positive for covid-19 without being infectious? Even if you have had three doses of coronavirus vaccine, a positive lateral flow test (LFT) result means you are infectious to other people ...