Related by context. Frequent words. (Click for all words.) 65 Sexually active 60 Genital herpes 59 syphilis gonorrhea 58 Human papillomavirus 57 causes genital herpes 56 Genital warts 56 vaginal cancers 56 causes genital warts 56 coinfection 56 genital HPV 55 urethritis 55 Chlamydia trachomatis 55 Human Papilloma Virus 55 HPV sexually transmitted 55 seronegative 55 vaginal secretions 54 sexually transmissible 54 oral herpes 54 HIV uninfected 54 unprotected anal intercourse 53 nonpregnant 53 coinfected 52 Gonorrhoea 52 unprotected anal sex 52 Nothing vulgar obscene 52 anal cancers 52 chlamydia gonorrhea 51 prevalance 51 Chlamydia pneumoniae 51 pneumococcal infection 51 knowingly infecting 51 cervical intraepithelial neoplasia 51 MCV4 51 cotrimoxazole 51 vaginitis 51 syphilis infections 51 Unprotected sex 51 sexually transmitted 51 causes chickenpox 51 unprotected sexual intercourse 51 Human Papillomavirus 50 prematurely abort 50 hepatitis C HCV 50 Urinary tract infections 50 bacterial vaginosis 50 pelvic inflammatory disease 50 cervical lesions 50 heterosexual intercourse 50 Gardasil protects 50 Prevention CDC recommends 50 progesterone deficiency 50 HIV human immunodeficiency 50 Premature ejaculation 50 irregular menstrual cycles 50 bacteraemia 50 discordant couples 49 seropositive 49 Retrovir 49 Sexual dysfunction 49 Salmonellosis 49 highly communicable 49 Human Papillomavirus HPV 49 vaginal infections 49 Cytomegalovirus 49 anal intercourse 49 genital tract 49 ethambutol 49 valacyclovir 49 genital herpes 49 chronic HCV infection 49 undergone hysterectomy 49 indinavir 49 prevalences 49 CCR5 tropic HIV 49 bronchitis pneumonia 49 chronic hepatitis B. 48 CMV infection 48 seroprevalence 48 sexually transmitted infections STIs 48 nucleoside analogue 48 Kenya Malawi Mozambique 48 aciclovir 48 chlamydia 48 confidence interval #.#-#.# 48 Chlamydia 48 b Hib 48 sexually transmitted infection 48 acne vulgaris 48 treating erectile dysfunction 48 HPV human papillomavirus 48 dyspareunia 48 protozoan parasite 48 HPV# 48 G#D mutation 48 acquired immunodeficiency syndrome 48 Menactra vaccine 48 hepatitis B virus HBV 47 herpes simplex 47 hiv 47 lascivious acts upon 47 precocious puberty