Covid vaccine take up among 12 to 15-year-olds varies considerably around the UK, with Scotland leading the way.
Wales began vaccinating this age group from October 4, two weeks after England and Scotland.
Data from Public Health Wales earlier this week showed that 34,325 young people in this age group have now had a first dose of the jab in Wales, which equates to 23.6% or almost one in four. That compares with just 12.1% in England and 40.6% in Scotland.
The Welsh Government has said all 12 to 15-year-olds here will be offered a Covid vaccine by the end of the October half-term. Read more about the vaccines being given in the evenings and weekends here.
A Scottish Government spokesperson said: “Scotland continues to make excellent progress in the vaccination of 12 to 15-year-olds, and we are delighted that so many young people have taken up the offer of vaccination. To date, 40.6% of 12 to 15-year-olds in Scotland have received a single dose of the vaccine.
“Drop-in clinics for this cohort have been available since 20 September in mainland health boards, and vaccination appointment letters are now being sent out to 12 to 15-year-olds in Scotland.
“Vaccination clinics are being offered in a variety of locations and some rural areas have also offered vaccination in a school setting. This means it is quick and easy for 12 to 15-year-olds and their parents to speak to vaccinators about the offer and access vaccination."
The Pfizer-BioNTech vaccine is being offered to 12 to 15-year-olds in mass vaccination centres in Wales .
It follows advice from the UK's four chief medical officers who concluded that a comprehensive rollout of the vaccine would help to reduce - but not eliminate - education disruption.
They claimed it would also lower the risk of public health harm from the virus.
"This [rollout] will happen at pace, with pupils invited to vaccination centres after school, in the evenings and weekends. We expect all children in this age group to have been offered a vaccine during October," a Welsh Government spokesman said.
Experts have warned that the high coronavirus infection rates in Wales are being driven predominantly by those between the ages of 10 and 19 who are not doubled-jabbed.
Latest Welsh Government data shows more than 6,000 children missed school in the last week for Covid-related reasons. That is well down on the previous week's figure of 10,000 but headteachers warn there is continued disruption to education caused by the pandemic.
Teachers in Wales have been threatened by anti-vaccine campaigners. Letters circulated by campaign groups and parents are accusing schools of sanctioning “medical experimentation”.
Eithne Hughes, director of the Association of School and College Leaders Cymru said the letters contain threats of court action and huge fines.
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