The “super flu” behind outbreaks in the US and UK is a new variant of influenza A H3N2, subclade K. Existing vaccines appear to be insufficiently effective against the virus.

Flu cases are rising rapidly across the US due to a new strain called subclade K, a mutated form of the H3N2 influenza A ...

A new Covid-19 variant has been detected in the UK, the UK Health Security Agency (UKHSA) has said. The NB.1.8.1 variant – which has been dubbed Nimbus – has been detected in small numbers in the UK, ...

Health officials in the UK revealed last week that a new dominant Covid variant is circulating across England. The latest data by the UK Health Security Agency (UKHSA) shows a recent surge in levels ...