Neospora caninum is a cyst-forming coccidian that mainly affects bovines, although Neospora infection has also been described in other domestic and wild ruminant species. Serum samples from 78 alpacas (Vicugna pacos) and 73 llamas (Lama glama) at a unique dilution of 1:50 tested by indirect fluorescent antibody test (IFAT) were further analyzed serologically by IFAT and Western blot in both ruminant species to avoid cross-reactions with closely related coccidian parasites and to confirm the existence of N. caninum–specific antibodies. IFAT titers ranging between 1:50 and 1:800 were found. When using Western blot, N. caninum tachyzoite–specific immunodominant antigens with apparent molecular weights of 17–18, 34–35, 37, and 60–62 kDa were also recognized, although some sera with 1:50 IFAT titers proved not to have N. caninum–specific antibodies. As expected, higher IFAT titers were associated with higher anti–N. caninum reactivity in Western blot. This report documents for the first time the presence of N. caninum infection in adult alpacas and llamas from Peru.
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August 2004
Research Article|
August 01 2004
First Report of Neospora caninum Infection in Adult Alpacas (Vicugna pacos) and Llamas (Lama glama)
A. Chávez-Velásquez;
A. Chávez-Velásquez
aFacultad de Medicina Veterinaria, Centro de Investigaciones IVITA, 41-0068 Lima, Peru
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G. Álvarez-García;
G. Álvarez-García
bDepartamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
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E. Collantes-Fernández;
E. Collantes-Fernández
bDepartamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
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E. Casas-Astos;
E. Casas-Astos
aFacultad de Medicina Veterinaria, Centro de Investigaciones IVITA, 41-0068 Lima, Peru
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R. Rosadio-Alcántara;
R. Rosadio-Alcántara
aFacultad de Medicina Veterinaria, Centro de Investigaciones IVITA, 41-0068 Lima, Peru
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E. Serrano-Martínez;
E. Serrano-Martínez
aFacultad de Medicina Veterinaria, Centro de Investigaciones IVITA, 41-0068 Lima, Peru
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L. M. Ortega-Mora
L. M. Ortega-Mora
bDepartamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
cTo whom correspondence should be addressed. luis.ortega@vet.ucm.es
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J Parasitol (2004) 90 (4): 864–866.
Citation
A. Chávez-Velásquez, G. Álvarez-García, E. Collantes-Fernández, E. Casas-Astos, R. Rosadio-Alcántara, E. Serrano-Martínez, L. M. Ortega-Mora; First Report of Neospora caninum Infection in Adult Alpacas (Vicugna pacos) and Llamas (Lama glama). J Parasitol 1 August 2004; 90 (4): 864–866. doi: https://doi.org/10.1645/GE-260R
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