Question: what are the two main categories of stis?
Answer: Human Immunodeficiency Virus (HIV) and Acquired Immune Deficiency Syndrome (AIDS) ...  Chlamydia. ...  Gonorrhea. ...  Pelvic Inflammatory Disease (PID) ...  Genital Warts and Human Papillomavirus (HPV) ...  Genital Herpes (HSV-1, HSV-2) ...  Syphilis. ...  Symptoms That Suggest Sexually Transmitted Infections May Include: