Vaccine age for tetanus vaccine has increased by 18 years in the United Kingdom from 10 years to 12 years since 2009, according to a new study from researchers at Imperial College London and the University of Cambridge.
The study, which looked at the data from the UK National Health Service (NHS), was published in the British Medical Journal.
It found that the vaccine age increased by about 6.5 years from 2008 to 2016.
The researchers looked at data for all children in the UK from the years 2006 to 2016, and the age at which vaccines were administered was based on the National Immunisation Database.
The authors say that while the study is not definitive, the increased age is consistent with the increasing numbers of children receiving tetanus vaccines.
The number of children aged 12 to 17 years who received tetanus toxoids from the NHS has increased from 12,876 in 2006 to 18,734 in 2016.
More than a quarter of the children in that age group had received tetanus toxoids in 2006, and this figure increased to almost two thirds in 2016, according the study.
The new study shows that the age of vaccines administered to children in England and Wales has increased steadily since 2009 and is now more than a year older than in the year 2000.
The age of vaccination for children aged 6 to 11 in 2016 was 12 years, up from 11 years in 2009.
However, it’s unclear whether this is due to the introduction of the new vaccine, which was first introduced in 2010, or a wider introduction of vaccines for the age group, such as in Wales.
The vaccine age of children in Wales was 13.3 years in 2016 (from 9.9 years in 2006), according to the Welsh Government.
The Welsh Government said that the Welsh NHS would “continue to work with the scientific community” to ensure the vaccination schedule for the children aged six to 11 continues to reflect current scientific evidence.
The UK government also said it would continue to work closely with experts in the vaccine safety and efficacy field to “maintain our vaccination record.”