“…[ 7 ] C. trachomatis and C. pneumoniae are the two major species easily infected by humans, and others are zoonotic and always transmitted from animals to humans. [ 8 9 10 11 ] Table 1 lists the six kinds of most common Chlamydia species and related diseases. C. trachomatis have different serovars: A, B, Ba, and C lead to trachoma, D to K lead to genital tract Chlamydia infection, and L1–L3 lead to lymphogranuloma venereum.…”