Some initial findings ... indicate that levels of virus in those who become infected with Delta having already been vaccinated may be similar to levels found in unvaccinated people
"Overall, we're seeing a really strong effect to reducing any infection, asymptomatic and symptomatic," PHE's strategic response director Susan Hopkins told a media briefing.
"Hospitalisation and deaths rates are falling in all age groups, but the oldest age groups are seeing the fastest decline since the peak in mid-January," a PHE statement said.