Researchers identify a novel SARS-CoV-2 variant (with the V1230L mutation) in West Bengal, India

The continued transmission of SARS-CoV-2 has led to its mutating several times. Many of the new mutations are on the virus spike protein, which has helped viral fitness and survivability by making it more infectious and giving it the ability to evade the immune system and neutralizing antibodies.

Several variants of concern have emerged in different parts of the globe, like the B.1.1.7 in the United Kingdom, the B.1.351 in South Africa, and the P.1 strain in Brazil. Two new variants have recently been reported from India, the B.1.617 and B.1.618 strains, characterized by several mutations in the spike protein.

The frequency of the B.1.617 variant in the population increased significantly beginning February 2021. This variant was reported to be seen in the United Kingdom, United States, and Singapore in later February 2021, spreading to more than 60 countries by May 2021.
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