Related by context. Frequent words. (Click for all words.) 70 unprotected anal sex 64 anal intercourse 61 penetrative sex 61 vaginal intercourse 61 unprotected sexual intercourse 60 uncircumcised men 59 bacterial vaginosis 59 genital tract 58 vaginal secretions 58 Genital herpes 58 valacyclovir 58 heterosexual intercourse 58 sexually active 57 heterosexual 57 virologic failure 56 MSMs 56 intercourse 56 anal sex 55 sexual intercourse 55 unprotected sex 55 seropositive 55 sexually transmitted infection 55 pre exposure prophylaxis 55 pelvic inflammatory disease 55 coinfected 54 genital herpes 54 tenofovir gel 54 STDs 54 HIV infection 54 sexually transmitted infections 53 unprotected intercourse 53 CMV infection 53 vaginal infections 53 homosexual intercourse 53 BRCA mutation 53 Chlamydia trachomatis 53 NRTI 53 hepatitis C HCV 53 HIV 53 gonorrhea 53 bisexual 53 vaginal cancers 53 monogamous relationships 53 nelfinavir 53 BRCA2 mutations 53 seroconversion 53 breast tenderness 53 PrEP 53 acquired immunodeficiency syndrome 52 heterosexuals 52 NNRTI 52 HPV# 52 STIs 52 chemoprophylaxis 52 sexually transmitted 52 contracting sexually transmitted 51 HBV infection 51 Heterosexual 51 sexually transmitted diseases 51 herpes simplex virus 51 HCV genotype 1 51 unexplained infertility 51 sexually transmitted infections STIs 51 hormonal contraception 51 heterosexual males 51 oropharyngeal cancer 51 undetectable viral load 51 urinary symptoms 51 Human Papillomavirus 51 antiviral therapy 51 lipoatrophy 50 condom 50 latent TB infection 50 vaginal atrophy 50 hiv 50 zidovudine 50 Male circumcision 50 HBV DNA 50 sexually transmitted disease 50 thromboembolism 50 consenting adult 50 % CI #.#-#.# [006] 50 chronic HBV infection 50 HCV infected 50 condom usage 50 androgen deprivation 50 virologic response 50 ketoconazole 50 pulmonary TB 50 d4T 50 anal penetration 50 uninfected 50 decreased libido 49 HPV infection 49 contaminated needles 49 causes genital warts 49 Kaposi sarcoma 49 CD4 + cell 49 reinfection 49 entecavir 49 HPV infections