title: Tracing infection by T. cruzi in El Salvador.
mesh_terms: D000818:Animals; D000953:Antigens, Protozoan / Q000032:analysis; D002415:Cats; D014355:Chagas Disease / Q000635:transmission*; D016358:Contact Tracing; D004285:Dogs; D004544:El Salvador; D006386:Hemagglutination Tests; D006801:Humans; D014349:Trypanosoma cruzi / Q000276:immunology
chemical_list: D000953:Antigens, Protozoan