With the detection of the new Omicron variant of coronavirus, lockdowns and travel curbs have been imposed in different countries. The World Health Organisation on Monday warned that the new variant poses a "very high" risk globally. The global health body, however, stressed that uncertainties remained about how contagious and dangerous the strain was.

In this segment of News Today with Rajdeep Sardesai, experts discuss why the new coronavirus variant is a cause of concern.