Europe had its first case of Delta mutant in March 2021. The B.1.617.2 strain was recognized by the World Health Organization as the ‘Delta’ variant of COVID19, which was identified as one of the drivers of the second wave of coronavirus infections. This variety has now evolved into the ‘Delta plus’ or ‘AY.1’ variant.
Europe had its first case of Delta mutant in March 2021. The B.1.617.2 strain was recognized by the World Health Organization as the ‘Delta’ variant of COVID19, which was identified as one of the drivers of the second wave of coronavirus infections. This variety has now evolved into the ‘Delta plus’ or ‘AY.1’ variant.