According to the most recent genome sequencing data, BA.2.75, a novel sub-lineage of Omicron, has replaced other coronavirus strains as the predominant one in circulation in India.

Experts discovered that 70% of the sequenced samples exhibited the BA.2.75 sub-lineage at a review meeting held on Friday by the Indian SARS-CoV-2 Cooperation on Genomics (Insacog), a national consortium of government institutes. In less than 10% of samples, other sub-lineages like BA.4 and BA.5 have been identified. According to the most recent statistics, BA.2.38, which was identified above 40% till last month, has decreased. The experts discovered BA.2.12.1 as a new sub-lineage that is now present in India.

Evidence suggests that the BA.2.75 variant might be behind the increasing number of Covid cases in some cities, including Delhi, and also causing reinfections. In Delhi, between August 1 and 10, there were more than 19,760 Covid-19 instances reported.

Virologist Shahid Jameel of the University of Oxford said, "BA.2.75 is the main variant circulating in India at this time, so yes, it can be blamed for reinfections. In the US and Europe, it′s BA.4/BA.5. These variants are highly mutated from the vaccine strain as well as prior infection variants including Omicron. So prior antibodies are no longer preventing infection. But those infected continue to be protected from severe disease and hospitalisation rates are low."

(ETHealthWorld, August 31, 2022)

https://health.economictimes.indiatimes.com/news/industry/new-omicronsubvariant-ba-2-75-is-now-the-dominant-strain-in-india/93892443