New COVID-19 restrictions for international travel and other activities are fueling consumer demand for highly accurate polymerase chain reaction, or PCR, tests with rapid turnaround times. Some ...

Add Yahoo as a preferred source to see more of our stories on Google. For any American wondering if they have Covid-19, there are two kinds of tests available: polymerase chain reaction (PCR) and ...

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Dr. Matt Binnicker, an expert in the diagnosis of infectious diseases, reviews scenarios where an at-home antigen test is a good option, and when to seek out a lab-based PCR. The omicron variant is ...

Unlike Covid-19, hantavirus cannot be detected using rapid antigen kits. Doctors explain why diagnosis depends on specialised ...

ATLANTA — As coronavirus research continues to evolve, so does the spread of misinformation. Now there's a new claim making the rounds and questioning the accuracy of COVID-19 testing. Our VERIFY team ...

The COVID-19 pandemic has seen the rise and fall of many variants, but nothing like BA.5. Previous subvariants of omicron have caused cascading surges as they outcompeted each other; now, BA. 5 is the ...

MILFORD, Conn.--(BUSINESS WIRE)--The current Coronavirus chaos is largely caused by phony PCR tests marketed as RT-qPCR assays, explained Dr. Sin Hang Lee, director of Milford, Connecticut-based ...

Every American traveling abroad needs to take an antigen test to return to the United States. But the start of the trip is often even more cumbersome, as many other countries (nearly every one I have ...

Chinese scientists say they have developed a new coronavirus test that is as accurate as a PCR lab test but gives results within four minutes. Polymerase chain reaction (PCR) tests are widely ...