The CDC Division of STD Prevention developed online STD education modules for clinicians. The Self Study STD Modules for Clinicians offers free CME, CNE, and CEU for each of seven STD topics: chlamydia, gonorrhea, syphilis, pelvic inflammatory disease (PID), vaginitis, herpes simplex virus (HSV) and human papillomavirus (HPV). Each module covers epidemiology, pathogenesis, clinical presentation, diagnosis, treatment, prevention and partner services information along with an interactive case study.