Reproductive tract complication risks following infections: a long-term prospective cohort study from 2008 to 2022.

Background: The clinical and public health relevance of widespread testing for asymptomatic (chlamydia) infections is under debate. To address uncertainties in screening programs, we estimate reproductive tract complication risks following asymptomatic and symptomatic chlamydia infections in a long-term prospective cohort.

Methods: A cohort of 5704 reproductive-age women recruited from a chlamydia screening study was followed for up to 14 years.

Challenges in Chlamydial Serology: Insights from a Belgian and a Dutch Population Cohort.

Serology routinely serves as a diagnostic tool to confirm infections in humans. Particularly in delayed settings, such as post-outbreak scenarios where the acute phase of infection has subsided, serology is invaluable. Multiple studies, nonetheless, indicate deficiencies in specificity and sensitivity of current chlamydial antibody detection assays.

Trends in IgG seroprevalence in the general population of the Netherlands over 20 years.

Objectives: To report sex and age-specific (Ct) seroprevalence estimates in the general population of the Netherlands between 1996 and 2017 and identify risk factors associated with Ct seropositivity.

Methods: Participants (n=5158, aged 15-59 years) were included from three independent nationwide population-based serosurveillance studies in 1996, 2007 and 2017. Participants completed a questionnaire on demographics and sexual behaviour.