Jharkhand to ascertain Covid variants The preserved positive samples of those who died would be sent to the Institute of Life Science (ILS), Bhubaneswar, for whole genome sequencing The Jharkhand government directed all medical colleges of the state to send the preserved swab samples of all who died of Covid-19 infection on or after April 1 for whole genome sequencing (WGS). The preserved positive samples of those who died would be sent to the Institute of Life Science (ILS), Bhubaneswar, for WGS that would help understand the mortality rate among various variants, additional chief secretary (health) Arun Kumar Singh said in a letter he wrote on Friday to the heads of state’s medical colleges.