Figure 1From: A comparison of sexual behaviour and attitudes of healthy adolescents in a Danish high school in 1982, 1996, and 2001 Number of detected infections caused by Chlamydia trachomatis and Neisseria gonorrhoea in Denmark from 1996 to 2001. Data are based on mandatory surveillance system covering infections in the whole country which has a total population of approximately 5 million people.Back to article page