Seroreversion to Chlamydia trachomatis Pgp3 Antigen Among Children in a Hyperendemic Region of Amhara, Ethiopia.
Christine TedijantoSolomon AragieSarah GwynDionna M WittbergTaye Zeru TadegeZerihun TadesseAmbahun ChernetIsabel J B ThompsonScott D NashThomas M LietmanDiana L MartinJeremy David KeenanBenjamin F ArnoldPublished in: The Journal of infectious diseases (2024)
Monitoring trachoma transmission with antibody data requires characterization of decay in IgG to Chlamydia trachomatis antigens. In a 3-year longitudinal cohort in a high-transmission setting, we estimated a median IgG half-life of 3 years and a seroreversion rate of 2.5 per 100 person-years (95% confidence interval, 1.6-3.5). Clinical Trials Registration NCT02754583.