The World Health Organization (WHO) has warned against describing the Omicron variant as mild, saying it is killing people across the world.
Read MoreIndia is bracing for a third wave of coronavirus as its largest cities - the capital Delhi and financial hub Mumbai - see a surge in cases.
Read MoreChina has put a second city into total lockdown after just three asymptomatic Covid cases were discovered.
Read MoreThe combination of Delta and Omicron variants is driving a dangerous tsunami of Covid-19 cases, the World Health Organization (WHO) chief has said.
Read MoreIsrael's top health adviser says the surge of Omicron cases could see the country reach Covid herd immunity.
Read MoreThe United Arab Emirates has announced that it will ban citizens who have not had three doses of a vaccine against Covid-19 from travelling abroad.
Read MoreUS health officials have halved the recommended isolation time for people with asymptomatic Covid-19 from 10 to five days, amid a surge in cases.
Read MorePeople catching Omicron are 50% to 70% less likely to need hospital care compared with previous variants, a major analysis says.
Read MoreIf you have a sore throat, runny nose and a headache there is a good chance it will be Covid, warn UK researchers.
Read MoreIsrael says it plans to become the first country to roll out a fourth dose of the Covid-19 vaccine as the country prepares for a wave of infections driven by the new Omicron variant.
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