NATtrol™ CT/NG/TV/MG Positive Control Swab (NATSTI-SW) contains purified, intact microorganisms that have been chemically modified to render them non-infectious. Each swab contains Chlamydia trachomatis (LGVII434), Neisseria gonorrhoeae, Trichomonas vaginalis and Mycoplasma genitalium (SEA-1). The analytes are formulated in a proprietary matrix and dried on swabs.