Trypanosoma evansi experimental infection in the South American coati ( Nasua nasua): clinical, parasitological and humoral immune response

The course of Trypanosoma evansi infection in coatis (Carnivora, Procionidae) was followed for 262 days. Parasites were detected in all infected animals from day 2 post infection until the end of the study. No correlation between temperature and parasitemia was observed. Animals of the infected grou...

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Bibliographic Details
Published in:Veterinary parasitology 2001-12, Vol.102 (3), p.209-216
Main Authors: Herrera, H.M, Aquino, L.P.C.T, Menezes, R.F, Marques, L.C, Moraes, M.A.V, Werther, K, Machado, R.Z
Format: Article
Language:English
Subjects:
Animals
Antibodies, Protozoan - biosynthesis
Antibodies, Protozoan - blood
Carnivora - parasitology
Carrier State - immunology
Carrier State - parasitology
Carrier State - veterinary
Chronic Disease
Disease Reservoirs - veterinary
Experimental infection
Fluorescent Antibody Technique, Indirect - veterinary
Nasua nasua
Pantanal
Parasitemia - immunology
Parasitemia - parasitology
Parasitemia - veterinary
Reservoir
Time Factors
Trypanosoma
Trypanosoma evansi
Trypanosomiasis - immunology
Trypanosomiasis - parasitology
Trypanosomiasis - veterinary
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Summary:The course of Trypanosoma evansi infection in coatis (Carnivora, Procionidae) was followed for 262 days. Parasites were detected in all infected animals from day 2 post infection until the end of the study. No correlation between temperature and parasitemia was observed. Animals of the infected group demonstrated depression, weakness, lethargy and pale mucous membranes. Indirect fluorescent antibody tests detected anti- T. evansi antibodies within 7 to 14 days post infection and showed high levels until the end of the experimental period. The persistent parasitemia in coati and their relative tolerance to clinical signs suggested that this species develops a chronic disease and plays an important role in the epidemiology of trypanosomosis due to T. evansi in enzootic regions.
ISSN:0304-4017
1873-2550
DOI:10.1016/S0304-4017(01)00532-5