Booster doses of current Covid-19 vaccines need to be updated, says WHO

More than 50% of population in Europe will be infected with Omicron, warns WHO

Akshay Kumar's 'Prithviraj' release postponed due to Omicron scare? Find out

US schools workplaces extend their holiday break amid rising COVID-19 cases

India's Omicron tally nears 800, Delhi and Maharashtra worst-hit

Overall risk related to Omicron 'remains very high', warns WHO

Omicron outbreak: CDC recommends shorter Covid isolation for Americans

Omicron outbreak: UK records 98,515 COVID cases, 143 deaths in past 24 hours

COVID-19 variant disrupts holiday travel in America but not shopping

India's daily COVID-19 cases decline, but Omicron infections continue to rise

Four more Omicron cases take Kerala's tally to 15

Karnataka reports five more cases of Omicron, state's tally rises to 19

India's Omicron cases hit 150, here's list of worst-affected states

Bengal reports its 1st Omicron case, 7-year-old tests positive in Murshidabad

COVID vaccine booster shots important for frontline workers: IMA Chief

Booster doses of Covid vaccines easiest barrier against Omicron: Virologist

Omicron outbreak: 23 countries have detected cases of new COVID-19 variant