It was possible -- albeit rare -- for people not infected with SARS-CoV-2 to have persistent false positive rapid antigen COVID-19 tests, longitudinal data showed. Among a large cohort of over 11,000 ...
COVID cases are starting to creep up again in the U.S., and it’s understandable to have new questions about the virus and the newest CDC guidance on isolation after a positive test. After all, it’s ...
When COVID first hit, waiting days for laboratory results from an ultrasensitive polymerase chain reaction (PCR) test was commonplace. Faster tests usable by anyone, anywhere, later became widely ...
New Delhi: An RT-PCR test has been made mandatory for everyone, including senior ministers, meeting Prime Minister Narendra Modi, as active Covid-19 cases in the ...
The U.S. government recently announced that Americans can once again request four free COVID-19 tests. Any U.S. household can order four free COVID-19 tests on the United States Postal Service webpage ...