Updated On: 28 November, 2021 10:05 AM IST | Sydney | PTI
Although early days, Omicron appears to be able to reinfect people more easily than other strains

This picture has been used for representational purpose
There is global concern and widespread alarm at the discovery of SARS-CoV-2 variant B.1.1.529, which the World Health Organization (WHO) has called Omicron.
The WHO has classified Omicron as a `variant of concern` because it has a wide range of mutations. This suggests vaccines and treatments could be less effective.