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 ...

Remember that the RT-PCR test is just one part of how to diagnose and treat a patient with suspected COVID-19. It is important to look at the rest of the patient’s laboratory results and their images.

In a recent study published in Lancet Microbe, researchers compare the potential of real-time reverse transcriptase-polymerase chain reaction (RT-PCR) genotyping assays with whole-genome sequencing ...

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 ...

It’s best to test for RSV soon after your symptoms start. That’s because you’ll likely have the most virus in your system then. As you get better, the amount of virus will go down. (Photo Credit: ...