Omicron’s BA.2 sub-line still dominates in India: Insacog

The BA.2 subline of the Omicron variant remains the dominant variant, leading to 85% of cases in the country, experts told ET.

The Indian SARS-CoV-2 Genomics Consortium (Insacog), the group of government institutions involved in the genome sequencing of the coronavirus, held a meeting on Friday to review the situation, noting that the others so far discovered sub-lines have not resulted in any significant upswing in the country.

Experts said that 30% of the Covid cases in India were caused by subline BA.2.38.

“Many BA.2 were reclassified to BA.2.38. BA.2.38 appears to be the predominant subline in the most recent sequencing batches. So far, however, this has not led to an increase in hospital admissions or reports of an increase in the severity of the disease.

Some recently reported deaths are due to comorbidities. Appropriate Covid behavior is likely to reduce the spread of infection and is therefore still recommended,” Insacog had said in its earlier bulletin.

According to the experts, the new sub-lineage BA.2.75 has not yet led to the formation of a cluster.

“The total number of BA.2.75 could not be established due to reclassification issues, but no significant increase or clustering was observed,” said a senior official who attended the meeting. Experts said it was too early to call BA.2.75 more stringent.

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