The Tokyo metropolitan government has confirmed community transmission of subvariants ... the ministry reported. Both Omicron strains are said to be more contagious than the BA.

The Omicron variant has spread rapidly at U.S. bases in the prefecture. But this is the first time for prefectural officials to confirm a community transmission as they are unable to track the ...

Dr Tedros said scientists around the world are working to discover if the new variant is associated with higher transmission, risk of reinfection and how it reacts to vaccines. "Omicron's very ...