A new report has raised concerns about Britain's sexual health, with the number of new sexually transmitted infections (STIs) increasing by 2.2 per cent between 2005 and 2006.
A total of 376,508 new STIs were diagnosed in 2006, according to the Health Protection Agency (HPA), whose latest report suggests that young people between the ages of 16 and 24 tend to account for the majority of common STIs such as chlamydia.
Professor Pete Borriello, director of the HPA's Centre for Infections, said: "We have to get the message across that a casual shag should not mean syphilis, gonorrhoea, chlamydia or any other STI.
"We need to change attitudes towards condom use. It should be clunk clip every trip."
The report also suggests that nearly a third of the 73,000 adults living with HIV do not realise they are infected.
Professor Borriello said that everyone visiting an STI clinic should be tested for HIV and that young people who are sexually active should be tested for chlamydia every year and every time they sleep with a new partner.