ArgentinaTriatoma: A genus of the subfamily TRIATOMINAE. Several species are vectors of TRYPANOSOMA CRUZI.ParaguaySouth AmericaIndians, South American: Individual members of South American ethnic groups with historic ancestral origins in Asia.UruguayChagas Disease: Infection with the protozoan parasite TRYPANOSOMA CRUZI, a form of TRYPANOSOMIASIS endemic in Central and South America. It is named after the Brazilian physician Carlos Chagas, who discovered the parasite. Infection by the parasite (positive serologic result only) is distinguished from the clinical manifestations that develop years later, such as destruction of PARASYMPATHETIC GANGLIA; CHAGAS CARDIOMYOPATHY; and dysfunction of the ESOPHAGUS or COLON.Mortuary Practice: Activities associated with the disposition of the dead. It excludes cultural practices such as funeral rites.Insect Vectors: Insects that transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.Insect Control: The reduction or regulation of the population of noxious, destructive, or dangerous insects through chemical, biological, or other means.Chile