National laboratory reports of Chlamydia trachomatis seriously underestimate the frequency of genital chlamydial infections among women in Switzerland.

Background: Public health authorities want to evaluate their sexually transmitted disease (STD) surveillance systems to promote the most effective use of health resources.

Goal: The goal of this study was to estimate the sensitivity of national laboratory reports of in Switzerland (the proportion of cases detected by national laboratory reports).

Study Design: A cross sectional prevalence study was conducted by the Swiss Sentinel Surveillance Network of Gynecologists in 1998.

Prevalence of asymptomatic celiac disease in adolescents of eastern Switzerland.

Background: The prevalence of symptomatic CD in Switzerland is thought to be 1 in 1,000 inhabitants. As in other countries, oligo- and asymptomatic CD is being diagnosed with increasing frequency in all age groups.

Aim: To assess the prevalence of asymptomatic CD in adolescents in eastern Switzerland.