HIV Core Protein p24Viral Core ProteinsHIV InfectionsHIV SeropositivityHIV SeroprevalenceHIV-1HIV SeronegativityAcquired Immunodeficiency SyndromeAnti-HIV AgentsAIDS SerodiagnosisProteoglycansChondroitin Sulfate ProteoglycansMolecular Sequence DataSexual BehaviorCD4 Lymphocyte CountHomosexuality, MaleHIV AntigensHIVAmino Acid SequenceHepacivirusRisk-TakingAnti-Retroviral AgentsViral LoadSubstance Abuse, IntravenousVirus ReplicationSouth AfricaHepatitis B Core AntigensPrevalenceAIDS-Related Opportunistic InfectionsSexual PartnersCell LineHIV Protease InhibitorsTumor Suppressor Protein p53RNA, ViralDecorinBase SequenceAggrecansRisk FactorsHeparan Sulfate ProteoglycansCondomsZimbabweCD4-Positive T-LymphocytesProstitutionViral ProteinsAIDS Dementia ComplexGlycosaminoglycansHIV Envelope Protein gp120Antiretroviral Therapy, Highly ActiveExtracellular Matrix ProteinsUnsafe SexHeparitin SulfateHepatitis CUgandaCross-Sectional StudiesProtein BindingDNA, Viral