Speed is everything in the race against COVID-19’s Omicron variant, the fastest version of the virus we’ve seen to date. Its dizzying rise to dominance in the United States threatens to overwhelm our ...

We're back in familiar territory - growing concern about a new variant of coronavirus. It has been named Omicron by the World Health Organization, following the pattern of Greek code-names like the ...

What happens if you continue testing positive well after your isolation period has ended? Questions continue over COVID isolation and quarantine guidelines as the BA.5 variant leads to some confusion.

You’ve tested negative for COVID using a rapid antigen test (RAT), but are a close contact of a positive family member and have symptoms. So you might be wondering if you’re really COVID-negative or ...

Researchers from Osaka University compare the sensitivity of RATs and PCR tests for the Omicron variant of COVID-19 Osaka, Japan - Testing plays a crucial role in humanity’s strategy to mitigate the ...