People aged 45 or over in England can now book a Covid vaccine, as the programme enters a new phase.
It comes after all over-50s and those in high-risk groups in the UK were offered a first dose of the vaccine.
People can book their appointments on the NHS England website, which initially crashed on Tuesday morning when it opened up to the new age group.
The government has said it is on track to offer a first dose to all adults by the end of July.
Ministers have met their target of offering a first dose to the top nine priority groups by 15 April.
Its has now moved onto “phase 2” of the vaccination programme – which involves offering vaccines to healthy adults under the age of 50. There are an estimated 3.7 million people in England aged 45 to 49.
More than 32 million people in the UK have had their first vaccine dose.
On Saturday a record 475,230 second doses were given out, with more than 7.6 million people now fully vaccinated.