Add Yahoo as a preferred source to see more of our stories on Google. As a result of the rapidly-spreading Omicron variant, this week saw the biggest spike in Covid case numbers since records began in ...

Just as we thought we understood COVID testing, along came omicron and raised a whole new bunch of questions. We asked Dr Andrew Lee, a reader in global public health, to answer them. The UK ...

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 ...

Editor's Note: Article updated with latest information on availability of tests. People faced problems getting hold of the tests last week after a huge surge in demand prompted the Government website ...

A Covid-19 lateral flow test showing a negative result. Routine testing to identify those infected followed by efficient contact tracing, and supported isolation is still the most effective public ...

Lateral flow tests (LFTs) are quick and easy to take at home, giving a result within 20-30 minutes. They look for proteins on the surface of the virus, which are easily detected. However, they have a ...

The Biden administration announced on Tuesday that 500 million free rapid COVID home tests would be mailed to U.S. households starting from next month, as the country battles its latest wave of the ...

The emergence of the omicron variant is spurring a scramble for COVID-19 lateral flow tests, to try and ensure safe holiday parties and family gatherings. The U.K. is dealing with a supply crunch for ...

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.