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The emergence of new Covid variants and the importance of vaccination

The novel coronavirus that causes Covid-19 has been mutating and various mutations have been found across the globe. The World Health Organization (WHO) has classified some variants of Covid-19 as "variants of concern." These include the Indian double mutant Covid variant (B1617), the UK (B117), South African (B1351) and Brazilian (P1) variants. Why virus mutates and why some mutations are deemed dangerous? Is the Indian double mutant Covid variant resistant against the currently approved vaccines? Can vaccination help curb the pandemic? Dr Viswesvaran Balasubramanian, Yashoda Hospitals, Hyderabad answers these and more in this video. Watch till the end.

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