IndiaChinaPhylogenyRural PopulationPrevalenceSequence Analysis, DNAGeographyRural HealthMolecular Sequence DataUrban PopulationCross-Sectional StudiesCluster AnalysisGenotypeRisk FactorsDisease OutbreaksEconomic DevelopmentHIV InfectionsDeveloping CountriesGenetic VariationMedicine, AyurvedicAsiaIncidenceAsian Continental Ancestry GroupInfant, NewbornSex WorkersQuestionnairesPhylogeographySocioeconomic FactorsTibetTransients and MigrantsDNA, RibosomalSchistosomiasis japonicaEndemic DiseasesRNA, Ribosomal, 16STertiary Care CentersCities