Bacterial STIs include Syphilis Chlamydial infections Gonococcal infections Chancroid Lymphogranuloma venereum Granuloma inguinale Mycoplasmal infections Viral STIs include Genital and anorectal warts Genital herpes Molluscum contagiosum HIV infection Parasitic infections that can be sexually transmitted include Trichomoniasis (caused by protozoa) Scabies (caused by mites) Pediculosis pubis (caused by lice) Many other infections not considered primarily to be STIs—including salmonellosis, shigellosis, campylobacteriosis, amebiasis, giardiasis, hepatitis (A, B, and C), Zika virus infection, monkeypox (mpox), and cytomegalovirus infection —can be transmitted sexually.