bbc– More than 800 secondary schools in England will be visited by health teams from Monday to offer the coronavirus vaccine to children aged 12 to 15.
Health Secretary Sajid Javid said the vaccines “will help keep children in the classroom”.
More than 600,000 children have been vaccinated since the rollout was extended last month, NHS England said.
Some 163,000 received a jab in the last week after the national booking system was opened up to eligible under-16s.
Last month, the UK’s chief medical officers recommended that children aged 12 to 15 be offered one dose of a Covid vaccine.
The NHS began the rollout in England on 20 September.
Efforts to vaccinate pupils as many return to the classroom from the half-term break comes as cases in England remain high.
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Mr Javid said: “The vaccines are safe and will help keep children in the classroom – I encourage everyone to come forward for their jab to protect themselves and the people around them.”
Children can alternatively make an appointment via the national booking system to visit a vaccination centre.
Some 140,000 children have made appointments to book their vaccine over the next few weeks, NHS England said.
Dr Nikki Kanani, the deputy lead for the NHS Covid-19 vaccine programme, said efforts to vaccinate children “will not stop”.
Dr Kanani, who also works as a GP, added: “It’s really important that we continue with the same enthusiasm if we want to ensure children get to stay in the classroom with their fellow pupils this winter, and so I encourage all parents and guardians to head online and read the information on vaccinating your child, so you can make an informed decision.”
Pupils are also being urged to get tested for coronavirus before returning to school to reduce disruption to lessons.
Since the end of September, there has been a rise in the number of daily confirmed cases.
Across the UK, a further 41,278 positive cases were announced on Saturday, and the seven-day average remains above 40,000 cases.
Most areas in England have more than 400 cases per 100,000 people.