Covid, the mutation that helps the Delta variant spread

A CHANGE in amino acids could be the cause of Delta’s high infectivity. The new variant is at least 40% more transmissible than the Alpha identified in the UK at the end of 2020 and a series of studies are helping to understand what “superpower” allows it to spread like wildfire.

“The hallmark of Delta is that transmissibility seems to rise to the next level – says University of Texas virologist Pei-Yong Shi -: We thought Alpha was already pretty good at spreading.