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Saturday October 23rd, 2021
Health

Sri Lanka’s Delta variant with three mutations assigned its own lineage

Prof Neelika Malavige

ECONOMYNEXT – The Delta branch of SARS-CoV-2 with three new mutations identified in Sri Lanka by researchers at the University of Sri Jayewardenepura has been assigned a new lineage AY.28 and named  B.1.617.2.28, Sri Lanka lineage by the World Health Organisation (WHO).

After analysing samples collected from the western province, the researchers found that the Delta variant, with three spike protein mutations labelled SA222V, SA1078S and SA701S, had become the dominant variant in the western province by early August.

The researchers said the SA701S spike protein mutations was were only detected in Sri Lanka at the time.

At the time of writing, the lineage has been identified in Turkey, India, Russia and the US.

Professor in Microbiology at the Department of Immunology and Molecular Medicine, Faculty of Medicine, University of Sri Jayewardenepura, Neelika Malavige tweeted n Sunday (26) that the mutatiuon has been in the community for several months and 50 percent of COVID-19 cases in the Western province were identified to be this mutation.

Investigations are continuing to determine whether the transmissibility rate of the lineage is different from the original Delta variant, she said. (Colombo/Sep27/2021)

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