EXCLUSIVE: Some 3 per cent of people aged 15 to 24 living in Lambeth, a south London borough home to Clapham and Brixton, tested positive for chlamydia last year.EXCLUSIVE: Some 3 per cent of people aged 15 to 24 living in Lambeth, a south London borough home to Clapham and Brixton, tested positive for chlamydia last year.Read MoreHealth News | Mail Online