Coronavirus: Delta Variant Causes More Serious Infections, Here’s Everything We Know About ‘Variant Of Concern’

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Coronavirus: Delta Variant Causes More Serious Infections, Here's Everything We Know About 'Variant Of Concern'


The Delta variant, scientifically named B.1.617.2 of COVID-19 infections, refers to the fusion of two mutations of a virus strain that then form a third super-infectious strain. Variant B.1.617 contains mutations of two separate virus variants, namely, E484Q and L452R.

With the help of genome sequencing and sample testing, the first case of double mutation was discovered in India in the state of Maharashtra. Previous lab results reported a sharp increase in E484Q and L452R mutations since December.

The variant, which was previously called the ‘double mutant’ or ‘Indian variant’ virus, was officially named the ‘Delta variant’ by the WHO, to avoid any confusion regarding it. That said, the first mutant virus detected in Kent, UK, is now called ‘Alpha’, while the South African and Brazilian variant are known as ‘Beta’ and ‘Gamma’ respectively.

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