Covid-19: What do we know about the delta omicron recombinant variant?

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Abstract
A combination of the delta (AY.4) and BA.1 omicron variants has been named by the World Health Organization as the BA.1 x AY.4 recombinant. First detected in France in January 2022, it has since picked up the nickname “deltacron”1—Elisabeth Mahase finds out more