With Covid-19 cases up across the country, many people are once again relying on home tests to guide decisions about going to work and sending their kids to school and other activities. A lot of those ...

Add Yahoo as a preferred source to see more of our stories on Google. As the federal health emergency ended May 11 and COVID numbers are on the rise, here’s how you can still access tests, at-home and ...

Polymerase chain reaction (PCR) tests are one of the most popular diagnostic tools for the detection and diagnosis of viral diseases, such as coronavirus (COVID-19), due to their ability to rapidly ...

At-home Covid tests can be ordered for free starting Monday. Households can now order four free tests for home delivery at COVIDTests.gov. According to the government website, orders will begin ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen ...

Please provide your email address to receive an email when new articles are posted on . Whole blood PCR testing was more effective than plasma for detecting West Nile virus. Cerebrospinal fluid PCR ...

Nathaniel Hafer receives funding from the National Institutes of Health and the National Science Foundation. Anuradha Rao receives funding from the National Institute of Biomedical Imaging and ...