Polymerase chain reaction (PCR) tests were the first available for spotting the coronavirus. They work by detecting the virus’s genetic material, and are very accurate. Then came rapid tests, also ...

Scientists and public health experts built the COVID-19 pandemic response on years of experience navigating infectious disease outbreaks. Although lateral flow immunoassays have been central to ...

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 ...

AMERICA’S FEDERAL government–which had made the roll-out of vaccines its priority, rather than widespread testing–has said it will provide 500m rapid antigen tests free of charge to consumers, as the ...

The explosion of omicron cases in the U.S. smack in the middle of the holiday season is forcing Americans to rely more heavily on rapid tests prior to congregating with friends and family. In some ...