any disease easily transmitted by contact

an infection caused by herpes simplex virus type 2 (HSV-2) that is usually transmitted by sexual contact; marked by recurrent attacks of painful eruptions on the skin and mucous membranes of the genital area

a common venereal disease caused by the bacterium Neisseria gonorrhoeae; symptoms are painful urination and pain around the urethra

a venereal disease caused by a bacterium of the genus Calymmatobacterium; characterized by a pimply rash of the skin in the genital and groin region

a common venereal disease caused by the treponema pallidum spirochete; symptoms change through progressive stages; can be congenital (transmitted through the placenta)

infectious disease caused by a species of chlamydia bacterium; transmitted by sexual contact; characterized by genital lesions and swelling of lymph nodes in the groin