Matt Hancock said he is delighted that vaccination uptake in over 50s has hit 95 per cent in England.
The Health Secretary said the UK was on target to get all adults vaccinated by the end of July.
The latest NHS data shows that 59 per cent of people aged 45-49 have been vaccinated after being offered the jab earlier this month.
It came as the rare blood clots linked to the AstraZeneca vaccine have risen to 168 with over 21.2 million people having had the jab in the UK.
The UK’s medicines regulator said the overall case fatality rate was 19 per cent, with 32 deaths up to April 14.
Professor Adam Finn, Professor of Paediatrics at the University of Bristol and a member of the Joint Committee on Vaccination and Immunisation (JCVI), said it is “already clear that it (thrombotic thrombocytopenic syndrome) is going to remain a very rare event”.
He said the reports of more cases is “as expected”.
Coronavirus cases have continued to drop across much of England – and the virus was no longer the leading cause of death in March, new data has shown.
Office for National Statistics (ONS) figures show that Covid was the third leading cause of death in England that month, dropping from the top spot for the first time since October.
A further 18 people in the UK have died within 28 days of testing positive for Covid, bringing the total by that measure to 127,345.
There have also been a further 2,729 lab-confirmed cases of the virus in the UK.
The last scheduled flight from India to the UK has now arrived in Heathrow ahead of the country being put on the travel “red list” as the Covid crisis escalates in the region.
From 4am on Friday morning, India will be on the “red list” for travel - effectively banning travel from the country in to the UK.