Big weddings may be allowed despite expected delay to lockdown easing
By Sebastian Payne, Sarah Neville & Chris Giles
Covid: Unvaccinated most at risk from Delta variant
By Philippa Roxby
Delta coronavirus variant believed to have 60% transmission advantage - UK epidemiologist
By Sarah Young & Alistair Smout
The Highly Contagious Delta Variant Is On The Rise In The U.S.
By Jane Greenhalgh
How serious is Delta Covid variant for UK and do vaccines stop it?
By John Burn-Murdoch, Andy Bounds & Oliver Barnes