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There are at least 200 known cases of the Delta Plus coronavirus variant worldwide. Here’s what we know

By Jessie Yeung, Manveena Suri and Vedika Sud, CNN A new and slightly changed version of the Delta coronavirus variant is spreading in a number of countries including the United Kingdom, United States and India, health officials say. This strain, which has generated a significant amount of global media attention, is called B.1.617.2.1 or AY.1

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