Figures show Delta is more transmissible and more resistant to vaccine than Alpha
The total number of cases of the Covid Delta variant in the UK has risen to 75,953 to date, data has revealed, with the variant now accounting for 99% of Covid cases.
Also known as B.1.617.2, the Delta variant, combined with relaxations in coronavirus restrictions, is believed to be behind a sharp rise in Covid cases in the UK in the past weeks – a development that led Boris Johnson to delay the planned 21 June date for full lifting of Covid restrictions in England.
