“Over the past three weeks, 8.94% of the total number of sequences were assigned to the BA.1 line of the omicron genovariant, 83.21% to the BA.2 line, 6.57% to the BA.4/BA.5 lines, to the “delta” genovariant - 1.28%, ”TASS quotes a statement.

In April, it was reported that a new strain of the coronavirus, omicron, had been identified in Brazil.