Chlamydia infection - Annual Epidemiological Report for 2017

For 2017, 26 EU/EEA Member States reported 409 646 cases of chlamydia infection. The crude notification rate was 146 cases per 100 000 population. Notification rates of chlamydia infection varied considerably across Europe, with the highest country-specific rates more than 5 000 times higher than the lowest rates. This is believed to be mainly a reflection of the differences in chlamydia testing, case finding and reporting rather than indicative of actual differences in chlamydia prevalence. Notification rates continue to be highest among young adult women and heterosexuals. The overall trend appears stable over recent years, but there are variations at country level.