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1 June 2010 Factors Associated with Trypanosoma cruzi Exposure Among Domestic Canines in Tennessee
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Abstract
Trypanosoma cruzi, the etiologic agent of Chagas' disease, is enzootic in animal populations of the southeastern United States. In the United States, T. cruzi prevalence has been reported for over 20 different wildlife species, and 7 autochthonous human cases have been documented since 1955. Previous canine (Canis familiaris) serosurveys have been limited either by small sample size or confined geographic reporting areas. In this study, we report a seroprevalence of 6.4% among 860 canines from 31 counties and 5 ecoregions throughout Tennessee, using an indirect immunofluorescent assay (IFA). Statistically significant associations between seropositivity and age, weight, and outdoor living were noted. Differences in seropositivity were not seen based on American Kennel Club (AKC) group, sex, habitat, land cover, and ecoregion. Greater attention should be given to possible T. cruzi transmission in Tennessee and veterinarians should consider Chagas' disease as a differential diagnosis with compatible signs.
Meghan E. Rowland, Jenny Maloney, Sara Cohen, Michael J. Yabsley, Junjun Huang, Melissa Kranz, Alice Green, John R. Dunn, L. Rand Carpenter, Timothy F. Jones and Abelardo C. Moncayo "Factors Associated with Trypanosoma cruzi Exposure Among Domestic Canines in Tennessee," Journal of Parasitology 96(3), (1 June 2010). https://doi.org/10.1645/GE-2299.1
Received: 20 August 2009; Accepted: 1 January 2010; Published: 1 June 2010
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