IndiaPhylogenyPrevalenceRural PopulationDeveloping CountriesFossilsIncidenceUnited StatesSequence Analysis, DNAInfant, NewbornCost of IllnessMedicine, AyurvedicBiological EvolutionEvolution, MolecularRisk FactorsGeographyWorld HealthHealth Care CostsAge DistributionMolecular Sequence DataRural HealthDisease OutbreaksCross-Sectional StudiesHIV Infections