Eurosurveillance - Volume 6, Issue 5, 01 May 2001

Sexually transmitted infections (STIs), including HIV, pose a significant threat to the health and wellbeing of Europeans and require concerted and sustained intervention. Over the past decade, the number of reported cases of STIs, including antimicrobial resistant Neisseria gonorrhoeae, has increased appreciably (1), and outbreaks of syphilis have recently been reported in many Member states of the European Union (EU) (2, 3). Young people, homosexual men, and those with poor access to health care (including preventive and educational services) seem to be particularly affected, with increased travel and migration, high risk sexual behaviours, and a deterioration of public health responses to STI control (for example, partner notification) being key driving factors. Many of these demographic and behavioural trends are similar across EU states, as is the desire to develop and implement effective STI prevention and control programmes.

Surveillance of sexually transmitted infections (STIs) in England and Wales has, in the past, relied principally on aggregated statistical data submitted by all genitourinary medicine clinics to the Communicable Disease Surveillance Centre, supplemented by various laboratory reporting systems. Although these systems provide comparatively robust surveillance data, they do not provide sufficient information on risk factors to target STI control and prevention programmes appropriately. Over recent years, substantial rises in STIs, the emergence of numerous outbreaks of STIs, and changes in gonococcal resistance patterns have necessitated the introduction of more sophisticated surveillance mechanisms. This article describes current STI surveillance systems in England and Wales, including new systems that have recently been introduced or are currently being developed to meet the need for enhanced STI surveillance data.

A pilot study has been carried up in the United Kingdom to assess the feasibility of a national screening programme of genital chlamydial infections. The preliminary results show a high acceptance rate (70% of the candidates) and a significant coverage of the target population (40% over a six months period). Several other studies are ongoing in order to specify the more appropriate screening processes and partner notification strategies, as well as the cost effectiveness of a national programme.

In the Western area of Europe, AIDS incidence decreased by 12% in 2000 compared to 1999 (22 cases per million population). In the Eastern area, the incidence of notified cases remained low, but newly diagnosed cases are still rising. In the Centre, the rates of AIDS cases and HIV infections remain low. EuroHIV (European Centre for the Epidemiological of AIDS) coordinates the surveillance of AIDS in the WHO European Region since 1984 and of newly diagnosed HIV infection since 1999. The main findings of the latest update at end 2000 are presented here (1). To take into account the diversity of the epidemiological situation in the region, countries have been grouped into three geographic areas: the West (the 15 countries of the European Union plus Norway, Switzerland, Iceland, Israel, Malta) the East (the 15 Newly Independent States of the former Soviet Union) and the Centre (the remaining countries of the region).

This article presents results of surveillance of C. trachomatis and N. gonorrhoeae infection in Denmark. In 1999 and 2000, there were 291 and 309 male cases of laboratory-confirmed gonorrhoeae, whereas the number of female cases was 43 for both years. The penicillin resistance was steady, with a prevalence of 40% in 1999, whereas the prevalence of fluoroquinolone resistance increased from 0% in 1990 to 27% in 1999. The number of laboratory-confirmed C. trachomatis infections remains around 13 000 cases per year. Men aged 20-29 years and women aged 15-24 are the most at risk.