SAN FRANCISCO -- The recent outbreak of the omicron variant has many people running for the store for an over-the-counter rapid test. But simply taking the test once isn't enough to tell you if you ...

Taking a COVID-19 test at home seems simple enough: If you get a line, you're positive for the coronavirus. But what if your results aren't so obvious? For instance, if you only get a very faint line ...

At-home COVID-19 tests have become commonplace for many households, but knowing when exactly to take a rapid test — or when to throw old ones out — isn't always straightforward. Here's what health ...

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Add Yahoo as a preferred source to see more of our stories on Google. Covid-19 at home Rapid Test Kit The FDA has extended the shelf life for some COVID-19 tests. Now that allergy season is here, many ...

In a study involving nearly 1,000 patients seen at a Baltimore field hospital during a five-month period in 2022, researchers at Johns Hopkins Medicine, the University of Maryland School of Medicine, ...

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A fever and a nasty cough can be symptoms of a range of respiratory illnesses. An antigen test that narrows down the culprits can speed up diagnosis and recovery. When you purchase through links on ...