Lymphogranuloma venereum (LGV) is a systemic STI caused by Chlamydia trachomatis serovars L1, L2, or L3. In 2016, 2 043 cases of LGV were reported in 22 countries.
This external quality assessment (EQA) to assess the ability of national reference laboratories from EU/EEA Member States to correctly perform laboratory serodiagnostic tests for pertussis was a collaborative study organised from February to April 2016.