A variant of SARS-CoV-2 known as B.1.617 is widely suspected to have played a big part in the disastrous spread of covid-19 across India in recent months and Weekly infections of B.1.617.2, a further-mutated form . Millions have caught it and other variants. Hundreds of thousands are dead. The “617” variant has now spread to 44 countries. Most mutation s  make little difference to the virus’s impact on any people it infects and whenever a virus copies itself random mutation occurs . The world health organization have raised alarm about the India variant, How much should the world worry about the new Indian variant which has devastated the country ?

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