The Pfizer/BioNTech vaccine is 96 percent effective against hospitalisation after two doses, with the Oxford/AstraZeneca jab is 92 percent effective.
Health Secretary Matt Hancock said: “Our UK vaccination programme continues at pace and has already saved thousands of lives. It is our way out of this pandemic.
“This evidence of the effectiveness of two doses against variants shows just how crucial it is to get your second jab.
“If you have had your first dose but haven’t booked your second yet – please do so. It will help save lives and boost us on the road to recovery.”