Health Protection Agency data showed that between 2004 and 2005, the chlamydia diagnosis rate rose by 5 per cent, compared with 8 per cent the year before. But with almost 110,000 cases, chlamydia remains the most commonly diagnosed STI.
Overall, STI cases increased by 3 per cent. But rates of gonorrhoea fell 13 per cent.
STI figures for 2005; Live links at GPonline.com.