US
2 doses of vaccine reduce hospitalisations due to Omicron by 70%, says research by South African health insurance
PM Boris Johnson's government has already brought in new rules for England to slow the spread of Omicron
The findings are some of the earliest data on the protection against Omicron outside of lab studies
In a white lab coat and mask, virologist says her team realised something was different in PCR tests
Over 15 countries in Europe reported confirmed cases of new variant that has rattled financial markets
About 56 countries were reportedly implementing travel measures to guard against Omicron as of Nov. 28
Health officials say the infected person with mild symptoms returned from South Africa on Nov 22
The news of new variant emerging from South Africa prompted a swift reaction from several countries
China could face more than 630,000 infections a day if it dropped its zero-tolerance policies, say mathematicians
These countries have also been included in 'Category C', says NCOC