(G.N.S) Dt. 20 London Following a surge in Covid cases in the UK. Scott Gottlieb- Former Commissioner of US FDA has called for a “urgent research” into a mutation of the Delta variant “We need urgent research to figure out if this Delta plus is more transmissible, has partial immune evasion.The Delta plus strain includes the K417N mutation, also harbored by the Beta variant that’s associated with an increased risk
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