“At present, according to the analysis of the course of the disease, we can say that, first of all, most patients have severe weakness or fatigue, fever up to 38 degrees and above, headaches, loss of appetite, cough,” RIA Novosti quoted Ruzhentsova as saying.

According to her, these symptoms may be accompanied by damage to the lungs and other organs typical for coronavirus.

She added that at the moment there is little information about the characteristics of the disease caused by the "omicron", but new data are expected soon.

Earlier, Vladimir Dedkov, an expert of the World Health Organization group from Russia, Deputy Director for Research at the St. Petersburg Research Institute of Epidemiology and Microbiology named after Pasteur of the Federal Service for Supervision of Consumer Rights Protection and Human Welfare, Vladimir Dedkov, said in an interview with RT that the properties of the omicron strain of coronavirus still need to be studied.