<p>12 patients died of Covid-19 in last 24 hours in Guwahati Medical College and Hospital. Out of the 12 patients, nine were in ICU. The oxygen saturation level of the deceased patients was below 90 per cent.</p>.<p>“Last night 12 adult patients died. Out of these, 9 were in ICU. None of those patients were vaccinated. Their oxygen saturation was below 90%. Approximately 200 patients are still under treatment here,” said GMCH Superintendent Abhijit Sarma.</p>