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. 2011 Sep;48(5):1091-4.
doi: 10.1603/me10195.

High Trypanosoma cruzi (Kinetoplastida: Trypanosomatidae) prevalence in Triatoma sanguisuga (Hemiptera: Redviidae) in southeastern Louisiana

K Cesa  1 , K A Caillouët, P L Dorn, D M Wesson
Affiliations

High Trypanosoma cruzi (Kinetoplastida: Trypanosomatidae) prevalence in Triatoma sanguisuga (Hemiptera: Redviidae) in southeastern Louisiana

K Cesa et al. J Med Entomol. 2011 Sep.

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.

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Figures

Fig. 1
Fig. 1
Number, collection location, and infection status of T. sanguisuga collected by week, 2007. Proportion infected was not calculated for weeks in which fewer than five bugs were collected.
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