In addition further immunoreactive proteins could be identified such as the homologues of CPAF (CAB712), MIP (CAB080), TARP (CAB167), and PMPD (CAB776); all of them were also discussed as virulence associated factors in other chlamydial infections [6,7,20,22,24]. Here, TARP is linked to chlamydia trachomatis infectious disease.