The promiscuous 10%?

Abstract
With few exceptions every month uncovers more evidence of the declining sexual health of the UK population.1, 2 Levels of chlamydia have more than doubled in the past 10 years,1 nearly forgotten infections such as syphilis have returned to plague new generations3 and overall, sexually transmitted infections (STIs) are higher than at any time since the National Health Service began in 1948.4 Furthermore, while some reductions have been made in teenage pregnancy rates, these have been modest and still leave the UK with one of the highest rates in Europe.5 By and large our attempts to avoid a sexual health crisis and, more recently, to manage it have failed.