Lok Nayak Jai Prakash Narayan (LNJP) Hospital Medical Director Dr Suresh Kumar on Saturday said that Omicron sub-variant BA 2.75 is the dominant variant in Delhi having been found in a majority of cases. “We did a study where we wanted to know which sub-variant is having the highest transmission. We analysed data from 90 samples in August and found that more than half of the patients were infected with BA 2.75. It is the leading cause of transmission and it spreads faster,” Dr Kumar told ANI.