By Sophie Scott, medical reporter
A new study has found a quarter of teenage girls are not having the cervical cancer vaccine, despite it being free of charge at school.
Almost 3,000 year 10 and 12 girls were interviewed to find out how many of them had the free cervical cancer vaccine and how much they knew about it.
Overall, researchers found a lack of knowledge about the vaccine and human papillomavirus (HPV).
The vaccine protects against two types of HPV which causes 70 per cent of cervical cancer.
More than half of those surveyed were not aware HPV was sexually transmitted.