title: High Trypanosoma cruzi (Kinetoplastida: Trypanosomatidae) prevalence in Triatoma sanguisuga (Hemiptera: Redviidae) in southeastern Louisiana.
abstract: From May through November 2007, intensive weekly surveys at the site of a previously reported autochthonous human case of Chagas parasite infection resulted in the collection of 298 Triatoma sanguisuga (Leconte) specimens, of which 60.4% (180) were polymerase chain reaction positive for Trypanosoma cruzi Chagas. All were adults, in a ratio of approximately 1:1 female to male, indicating that the domicile was not colonized, but was a destination for these host-seeking adults. We report on seasonal activity pattern, T. cruzi prevalence in T. sanguisuga, and attempts at insect exclusion and control at the case residence.
authors.affiliation: Department of Tropical Medicine, Tulane University, New Orleans, LA 70112, USA.
authors.forename: K
authors.initials: K
authors.lastname: Cesa
authors.forename: K A
authors.initials: KA
authors.lastname: Caillouët
authors.forename: P L
authors.initials: PL
authors.lastname: Dorn
authors.forename: D M
authors.initials: DM
authors.lastname: Wesson
mesh_terms: D000818:Animals; D014355:Chagas Disease / Q000453:epidemiology* / Q000635:transmission; D016054:DNA, Protozoan / Q000032:analysis / Q000302:isolation & purification; D005260:Female; D006801:Humans; D007300:Insect Control; D007303:Insect Vectors / Q000502:physiology*; D008145:Louisiana / Q000453:epidemiology; D008297:Male; D016133:Polymerase Chain Reaction; D011157:Population Dynamics; D015995:Prevalence; D012621:Seasons; D014224:Triatoma / Q000469:parasitology*; D014349:Trypanosoma cruzi / Q000502:physiology*
chemical_list: D016054:DNA, Protozoan