**2. Target genes used in the identification of** *chlamydia*

Recent methods for typing *Chlamydia* have used the Chlamydiaceae 16S and 23S rRNA gene sequences. The gene targets most frequently used in the identification of *Chlamydia* are omp 1 (the gene encoding the major outer membrane protein-MOMP), cryptic plasmid, and 16S and 23S rRNA genes. The omp2 gene has been identified in all Chlamydiaceae except *C. pecorum* strains [6, 10, 11].
