Scientists have warned the Nimbus variant is more transmissible than previous Covid strains Events
Authorities monitoring Omicron subvariants for driving surge Science
The new Covid-19 variant may spread more easily than earlier strains, experts warn Events
The spread of NB.1.8.1 comes after the Trump administration announced a plan to limit access to Covid vaccines Politics
A new Covid variant, thought to have contributed to a wave of infections in China and parts of Asia, has been confirmed to be present in the US Politics