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Airlines canceled more than 1,500 flights in the US on Thursday.

Shanghai remained locked down, even when it was supposed to reopen on Friday.

Studies conducted by a group of international researchers on Monday said that the COVID-19 variant Omicron causes less severe symptoms

Coronavirus infection is increasing day by day. With the confirmation of the Omicron variant in Nepal, the infection is increasing daily.

The World Health Organization (WHO) on Wednesday cautioned and urged for preparedness against concurrent outbreaks of COVID-19 and other respiratory diseases during the coming spring.

A new coronavirus variant Deltacron has emerged in Cyprus which has a similar genetic background to the Delta variant, as well as some of the mutations from Omicron.

At least three major airlines have reported canceling dozens of flights as illnesses largely tied to the omicron variant of COVID-19

Italy on Thursday tightened anti-pandemic rules for the Christmas and New Year holidays amid concerns over rising Omicron cases across the country.

American biotechnology company Moderna announced Monday that preliminary data suggests its COVID-19 booster shot appears to increase antibody levels against the Omicron coronavirus variant.

U.S. sports leagues are seeing rapidly increasing COVID-19 outbreaks with dozens of players in health and safety protocols, amid an ongoing surge.