2016
DOI: 10.1016/j.ijppaw.2016.04.001
|View full text |Cite
|
Sign up to set email alerts
|

High Trypanosoma cruzi infection prevalence associated with minimal cardiac pathology among wild carnivores in central Texas

Abstract: Infection with the zoonotic vector-borne protozoal parasite Trypanosoma cruzi causes Chagas disease in humans and dogs throughout the Americas. Despite the recognized importance of various wildlife species for perpetuating Trypanosoma cruzi in nature, relatively little is known about the development of cardiac disease in infected wildlife. Using a cross-sectional study design, we collected cardiac tissue and blood from hunter-donated wildlife carcasses- including raccoon (Procyon lotor), coyote (Canis latrans)… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

1
43
0
3

Year Published

2016
2016
2021
2021

Publication Types

Select...
6
3

Relationship

3
6

Authors

Journals

citations
Cited by 53 publications
(47 citation statements)
references
References 43 publications
1
43
0
3
Order By: Relevance
“…Older dogs have a higher prevalence of T. cruzi infection than younger dogs, likely because older dogs have had more opportunities for exposure. 5,8,14,49 In our study population, infected dogs were significantly younger (mean = 5.9 years; P = .006) than negative dogs (mean = 7.4 years). Dogs presenting to a teaching hospital could be more likely to have clinical disease.…”
Section: Electrocardiographic and Cardiac Troponin I Findingsmentioning
confidence: 65%
See 1 more Smart Citation
“…Older dogs have a higher prevalence of T. cruzi infection than younger dogs, likely because older dogs have had more opportunities for exposure. 5,8,14,49 In our study population, infected dogs were significantly younger (mean = 5.9 years; P = .006) than negative dogs (mean = 7.4 years). Dogs presenting to a teaching hospital could be more likely to have clinical disease.…”
Section: Electrocardiographic and Cardiac Troponin I Findingsmentioning
confidence: 65%
“…2,7,8,36,37,[42][43][44][45][46] The high prevalence of dogs infected with T. cruzi likely demonstrates an established enzootic transmission cycle, as Texas harbors the highest species diversity of triatomine vectors that can transmit T. cruzi and a diversity of wildlife reservoirs. 2,5,47 The South Texas Plains ecoregion had the highest percent of infected dogs (47%), whereas the next highest region was the Edwards Plateau (32%). There is a greater than expected density of Triatoma gerstaeckeri in south central Texas, which is where we found the highest percent of infected dogs.…”
Section: Electrocardiographic and Cardiac Troponin I Findingsmentioning
confidence: 99%
“…The parasite is transmitted by infected hematophagous triatomine insects, commonly known as ‘kissing bugs’. Chagas disease is estimated to infect nearly 6 million people throughout Latin America, and occurs across the southern US in enzootic cycles [ 1 , 2 ], where raccoons and other wildlife serve as reservoirs [ 2 , 3 ]. In many areas of Latin America, such as in the Gran Chaco ecosystem, domestic dogs are an important reservoir of T .…”
Section: Introductionmentioning
confidence: 99%
“…Statistical modeling estimates that one case of vectorial transmission requires 900–4,000 contacts with an infected triatomine. 27 Second, triatomines opportunistically feed on a variety of vertebrate species—many of which are present on JBSA and have tested positive for T. cruzi infection in south-central Texas 28 , 29 —offering competitive, nonhuman blood meal sources. Third, species-specific vector competency may vary based on environmental distribution, flying and dispersal capacity, inclination to invade human dwellings, and feeding and defecation patterns.…”
Section: Discussionmentioning
confidence: 99%