Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Etiological classification of the most common STDs.
| Bacterial | Viral | Protozoal | Fungal | Ectoparasites |
| Neisseria gonorrhoeae | Herpes simplex virus | Trichomonas vaginalis | Candida albicans | Phthirius pubis |
| Chlamydia trachomatis | Human papilloma virus | Sarcoptes scabiei | ||
| Treponema pallidum | HIV (AIDS) | |||
| Haemophilus ducreyi | Cytomegalovirus |
