COVID-19 Delta variant (B1.617.2) is predominantly found even after getting a single dose or both doses of COVID-19 vaccine.The study included 63 people who got breakthrough infections; of which 36 patients received two doses, while 27 had received one dose of vaccine."SARS-CoV-2 lineages could be assigned for a total of 36 (57.1 per cent) samples, 19 (52.8 per cent) in patients who completed both doses and 17 (47.2 per cent) in patients who completed only a single dose.
B.1.617.2 was found to be the predominant lineage with 23 samples (63.9 per cent) out of which 12 were in fully vaccinated and 11 in partially vaccinated groups.