Figures from the Health Protection Agency show that 16- to 24-year-olds account for 65 per cent of all new cases of chlamydia. Last year, there were nearly 80,000 new cases of the STI among the younger age group. However, part of the rise has been attributed to more people being tested following the introduction of a national chlamydia screening programme. Lisa Power, head of policy at the Terrence Higgins Trust, acknowledged that better screening was partly responsible...