Document Detail


Discrete typing units of Trypanosoma cruzi identified in rural dogs and cats in the humid Argentinean Chaco.
MedLine Citation:
PMID:  23058180     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The discrete typing units (DTUs) of Trypanosoma cruzi that infect domestic dogs and cats have rarely been studied. With this purpose we conducted a cross-sectional xenodiagnostic survey of dog and cat populations residing in 2 infested rural villages in Pampa del Indio, in the humid Argentine Chaco. Parasites were isolated by culture from 44 dogs and 12 cats with a positive xenodiagnosis. DTUs were identified from parasite culture samples using a strategy based on multiple polymerase-chain reactions. TcVI was identified in 37 of 44 dogs and in 10 of 12 cats, whereas TcV was identified in 5 dogs and in 2 cats -a new finding for cats. No mixed infections were detected. The occurrence of 2 dogs infected with TcIII -classically found in armadillos- suggests a probable link with the local sylvatic transmission cycle involving Dasypus novemcinctus armadillos and a potential risk of human infection with TcIII. Our study reinforces the importance of dogs and cats as domestic reservoir hosts and sources of various DTUs infecting humans, and suggests a link between dogs and the sylvatic transmission cycle of TcIII.
Authors:
G F Enriquez; M V Cardinal; M M Orozco; L Lanati; A G Schijman; R E Gürtler
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2012-10-12
Journal Detail:
Title:  Parasitology     Volume:  140     ISSN:  1469-8161     ISO Abbreviation:  Parasitology     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-20     Completed Date:  2013-08-14     Revised Date:  2013-09-03    
Medline Journal Info:
Nlm Unique ID:  0401121     Medline TA:  Parasitology     Country:  England    
Other Details:
Languages:  eng     Pagination:  303-8     Citation Subset:  IM    
Affiliation:
Laboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Universidad de Buenos Aires, Buenos Aires, Argentina.
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MeSH Terms
Descriptor/Qualifier:
Animals
Argentina / epidemiology
Cat Diseases / epidemiology,  parasitology*,  transmission
Cats
Chagas Disease / epidemiology,  parasitology,  transmission,  veterinary*
Disease Reservoirs / parasitology
Dog Diseases / epidemiology,  parasitology*,  transmission
Dogs
Humans
Insect Vectors / parasitology
Rural Population*
Triatoma / parasitology
Trypanosoma cruzi / classification*,  genetics*,  isolation & purification
Xenodiagnosis
Grant Support
ID/Acronym/Agency:
R01 TW005836/TW/FIC NIH HHS; R01 TW05836/TW/FIC NIH HHS
Comments/Corrections

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