Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

Johns Hopkins researchers developed microdevices known as "theragrippers" that were designed to "latch onto intestinal mucosa and release drugs into the body" over an extended period of time. But they ...

To quickly confirm an asymptomatic case of COVID-19, a second rapid test within an hour of a positive result can boost the accuracy of the result from 38 percent to 92 percent, according to a new ...

Prefer an adorable dog licking your face over an invasive swab up the nose? That's a research-driven option now in testing for the coronavirus. Trained dogs have shown signs of being more effective at ...

With Omicron subvariants continuing to evolve and spread, more and more people are testing positive for COVID across the US and Illinois. As of the latest update, eight counties in Illinois were ...

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Preliminary evidence suggests that rapid tests like Abbott BinaxNOW and Quidel QuickVue struggle to detect the omicron variant during an individual’s first few days of infection. AzmanL via Getty ...

JERUSALEM, Jan 10 (Reuters) - Israel's Health Ministry on Monday instructed people self-testing for COVID-19 to swab their throat as well as their nose when using rapid antigen kits to increase the ...

FDA has extended shelf life of select at-home coronavirus tests Control line reveals whether test is working properly Up to 1 million expired Florida tests given extension We’ve all done it: finished ...

WASHINGTON — As the omicron variant sweeps through the U.S., testing has never been more important. Early January brought a new claim to the forefront of at-home testing discourse: you should swab ...