The new Covid-19 strain named 'Omicron' by the World Health Organization, has sent authorities and the medical health community across the world into a tizzy. While countries try to figure out the right steps to take to prevent a fresh outbreak, the WHO said it is “not yet clear” whether the newly-detected coronavirus variant is more transmissible or causes more severe disease compared to other variants, including the highly-transmissible and globally prevalent Delta variant.