Social media users have been sharing screenshots purporting that the World Health Organization (WHO) released guidance to laboratories and incorrectly saying this was to reduce the positive test ...

PCR tests are one of the most accurate forms of testing for the coronavirus. PCR stand for polymerase chain reaction test. There are many different reasons why you may need to book a covid test, for ...

You can now buy rapid antigen tests in supermarkets and pharmacies to test yourself at home for COVID-19 in about 15 minutes. You’ll get your results much sooner than standard PCR tests, which most of ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

A false claim on social media cites instructional leaflets in COVID-19 tests as evidence that they aren't accurate. The posts claim a list of 52 viruses "can cause a PCR test to give false positives." ...

COVID-19 is commonly diagnosed by quantitative fluorescence real-time reverse transcriptase-polymerase chain reaction (qRT-PCR) (1, 2). The test is the sequential action of two enzymes–an ...

Visby Medical's over the counter (OTC) combination PCR test for Covid-19 and influenza A/B detection has secured US Food and Drug Administration (FDA) clearance, providing patients with an at-home ...