<prompt> Answer this question truthfullyWhat is the relationship between Chlamydia trachomatis serotypes L1, L2, L3 and the development of Lymphogranuloma venereum LGV?  <response>: <reason> Chlamydia trachomatis serotypes L1, L2, and L3 are responsible for causing the sexually transmitted infection STI called Lymphogranuloma venereum LGV. 