COVID-19: Indian study finds evidence of Omicron variant's community transmission

COVID-19: Indian study finds evidence of Omicron variant’s community transmission

New Delhi: Amid rising cases of coronavirus across the country, a study conducted by the Department of Clinical Virology, Institute of Liver and Biliary Sciences in New Delhi has stated that most of the Omicron variant infected patients of COVID-19 during the last week of December 2021 had no travel history which indicates that there was eventual community transmission.

“The respiratory specimen of all RT-PCR confirmed positive cases between November 25 – December 23, 2021, collected from five districts of Delhi were subjected to whole-genome sequencing. Complete demographic and clinical details were also recorded. Hence, we analysed the formation of local and familial clusters and eventual community transmission,” the study noted, according to ANI.

The study also states that around 60.9 per cent of COVID-19 infected people showed a community spread. “Out of the 264 cases during this study period, 68.9 per cent (n=182) were identified as Delta variant and its sub-lineages while 31.06 per cent (n=82) were Omicron variant with BA.1 as the predominant sub-lineage (73.1 per cent),” it further read.

It stated that most of the Omicron cases were asymptomatic (n=50.61 per cent) and did not require any hospitalizations. “A total of 72 (87.8 per cent) cases were fully vaccinated. Around 39.1 per cent (n=32) had a history of travel or contacts while 60.9 per cent (n=50) showed a community transmission,” it added.

The study shows a steep increase in the daily progression of Omicron cases with its preponderance in the community which was observed from 1.8 per cent to 54 per cent.

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first published:Jan. 15, 2022, 4:36 p.m.

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