Related by context. Frequent words. (Click for all words.) 71 discordant couples 62 unprotected anal sex 60 seropositive 60 Sexually active 59 users IDUs 58 uncircumcised men 58 HIV prevalence 58 HIV infection 56 HIV infected 56 HIV diagnoses 56 IDUs 56 vaginal secretions 56 MSMs 56 HIV infections 55 genital tract 55 coinfected 55 seroconversion 55 heterosexual 54 heterosexual intercourse 54 antenatal clinics 54 oropharyngeal cancer 54 virologic failure 54 prevalences 54 HIV 54 sexually active 54 undetectable viral load 54 vaginal intercourse 53 invasive cervical cancer 53 HPV# 53 uninfected 53 valacyclovir 53 penetrative sex 53 MTCT 53 unexplained infertility 53 multivariate analyzes 52 pre exposure prophylaxis 52 premenopausal 52 HCV infected 52 HCV genotype 52 herpes infection 52 HCV genotype 1 52 liver transplant recipients 52 BRCA mutation 51 bacterial vaginosis 51 BRCA mutations 51 unprotected sexual intercourse 51 oestradiol 51 anal cancers 51 % CI #.#-#.# [003] 51 NHANES III 51 oral contraceptive pills 51 Genital herpes 51 MetS 51 sexually transmitted infections STIs 51 pre menopausal 51 viral loads 51 sexually transmitted infections 51 sexually transmitted infection 51 BRCA2 mutations 51 STIs 51 HBV infection 51 heterosexuals 51 premenopausal women 51 intercourse 51 Chlamydia trachomatis 50 Human Papilloma Virus HPV 50 HBsAg 50 Sexual dysfunction 50 CMV infection 50 Unprotected sex 50 anal intercourse 50 premenopausal breast cancer 50 HPV infections 50 CAPRISA 50 IRIN PlusNews 50 sexual intercourse 50 chemoprophylaxis 50 gonorrhea 50 perinatal mortality 50 chronic HCV infection 49 viremia 49 vaginal penetration 49 single dose nevirapine 49 oral herpes 49 caesarean delivery 49 human immunodeficiency virus 49 LUTS 49 CD4 counts 49 Ushercell 49 hepatitis C HCV 49 varicocele 49 prevalence 49 HIV AIDS prevalence 49 genital herpes 49 prospective cohort 49 causes genital warts 49 chronic HCV 49 HCV infection 49 condom usage 49 breast tenderness 49 postpartum hemorrhage