Eutrombicula cochinocaensis infestation in llamas (Lama glama) in the Puna region of Argentina

This paper aims to describe a case of trombiculosis in llamas from the Puna region of Argentina caused by Eutrombicula cochinocaensis. Trombiculosis is a parasitic infestation caused by the larval form of trombiculid mites, commonly known as chigger mites. Six adult llamas out of eighteen (33%) were...

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Main Authors: Medina, Diego Martín Nicolás, Acuña, Francisco Antonio, Abalos, Marcos, Aguirre Castro, Laura Sabrina, Avellaneda Cáceres, Agustín, Zamar, María Inés, Micheloud, Juan Francisco
Format: info:ar-repo/semantics/artículo
Language:Inglés
Published: Springer 2025
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/22270
https://link.springer.com/article/10.1007/s11259-024-10310-6
https://doi.org/10.1007/s11259-024-10310-6
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author Medina, Diego Martín Nicolás
Acuña, Francisco Antonio
Abalos, Marcos
Aguirre Castro, Laura Sabrina
Avellaneda Cáceres, Agustín
Zamar, María Inés
Micheloud, Juan Francisco
author_browse Abalos, Marcos
Acuña, Francisco Antonio
Aguirre Castro, Laura Sabrina
Avellaneda Cáceres, Agustín
Medina, Diego Martín Nicolás
Micheloud, Juan Francisco
Zamar, María Inés
author_facet Medina, Diego Martín Nicolás
Acuña, Francisco Antonio
Abalos, Marcos
Aguirre Castro, Laura Sabrina
Avellaneda Cáceres, Agustín
Zamar, María Inés
Micheloud, Juan Francisco
author_sort Medina, Diego Martín Nicolás
collection INTA Digital
description This paper aims to describe a case of trombiculosis in llamas from the Puna region of Argentina caused by Eutrombicula cochinocaensis. Trombiculosis is a parasitic infestation caused by the larval form of trombiculid mites, commonly known as chigger mites. Six adult llamas out of eighteen (33%) were infested and showed dermatitis, hyperemia, and crusts together with an orange-dotted pattern. The chigger mites were found mainly in the hind limbs and the abdomen. Microscopic identification of E. cochinocaensis was made by phase-contrast microscopy. Then, a histopathological study of the affected animals’ skin was performed. Histological findings included dermatitis withmainly lymphocytic infiltrate, pustules, crusts, hyperkeratosis, and the mites’ stylostomes in the dermis and epidermis. This is the first report of trombiculosis caused by E. cochinocaensis in llamas from Argentina. Mites of the family Trombiculidae are vectors of certain diseases to humans and animals and are therefore of sanitary and productive importance.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
language Inglés
publishDate 2025
publishDateRange 2025
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spelling INTA222702025-05-14T11:46:11Z Eutrombicula cochinocaensis infestation in llamas (Lama glama) in the Puna region of Argentina Medina, Diego Martín Nicolás Acuña, Francisco Antonio Abalos, Marcos Aguirre Castro, Laura Sabrina Avellaneda Cáceres, Agustín Zamar, María Inés Micheloud, Juan Francisco Llama Enfermedades de los Animales Parásitos Histología Llamas Lama glama Trombiculidae Animal Diseases Parasites Histology Eutrombicula cochinocaensis Trombiculosis Región Puna, Argentina This paper aims to describe a case of trombiculosis in llamas from the Puna region of Argentina caused by Eutrombicula cochinocaensis. Trombiculosis is a parasitic infestation caused by the larval form of trombiculid mites, commonly known as chigger mites. Six adult llamas out of eighteen (33%) were infested and showed dermatitis, hyperemia, and crusts together with an orange-dotted pattern. The chigger mites were found mainly in the hind limbs and the abdomen. Microscopic identification of E. cochinocaensis was made by phase-contrast microscopy. Then, a histopathological study of the affected animals’ skin was performed. Histological findings included dermatitis withmainly lymphocytic infiltrate, pustules, crusts, hyperkeratosis, and the mites’ stylostomes in the dermis and epidermis. This is the first report of trombiculosis caused by E. cochinocaensis in llamas from Argentina. Mites of the family Trombiculidae are vectors of certain diseases to humans and animals and are therefore of sanitary and productive importance. Instituto de Investigación Animal del Chaco Semiárido Fil: Medina, Diego Martin Nicolás. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina Fil: Medina, Diego Martin Nicolás. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina. Fil: Acuña, Francisco Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina. Fil: Abalos, Marcos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina Fil: Aguirre, Laura Sabrina. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina Fil: Aguirre, Laura Sabrina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal Chaco Semiárido; Argentina Fil: Aguirre, Laura Sabrina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Avellaneda-Cáceres, Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal Chaco Semiárido; Argentina Fil: Avellaneda-Cáceres, Agustín. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Zamar, María Inés. Universidad Nacional de Jujuy. Instituto de Biología de la Altura; Argentina Fil: Micheloud, Juan Francisco. Universidad Católica de Salta. Facultad de Ciencias Agrarias y Veterinarias; Argentina Fil: Micheloud, Juan Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal Chaco Semiárido; Argentina Fil: Micheloud, Juan Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2025-05-14T11:42:54Z 2025-05-14T11:42:54Z 2024-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/22270 https://link.springer.com/article/10.1007/s11259-024-10310-6 0165-7380 1573-7446 https://doi.org/10.1007/s11259-024-10310-6 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Springer Veterinary Research Communications 48 : 1831-1835. (2024)
spellingShingle Llama
Enfermedades de los Animales
Parásitos
Histología
Llamas
Lama glama
Trombiculidae
Animal Diseases
Parasites
Histology
Eutrombicula cochinocaensis
Trombiculosis
Región Puna, Argentina
Medina, Diego Martín Nicolás
Acuña, Francisco Antonio
Abalos, Marcos
Aguirre Castro, Laura Sabrina
Avellaneda Cáceres, Agustín
Zamar, María Inés
Micheloud, Juan Francisco
Eutrombicula cochinocaensis infestation in llamas (Lama glama) in the Puna region of Argentina
title Eutrombicula cochinocaensis infestation in llamas (Lama glama) in the Puna region of Argentina
title_full Eutrombicula cochinocaensis infestation in llamas (Lama glama) in the Puna region of Argentina
title_fullStr Eutrombicula cochinocaensis infestation in llamas (Lama glama) in the Puna region of Argentina
title_full_unstemmed Eutrombicula cochinocaensis infestation in llamas (Lama glama) in the Puna region of Argentina
title_short Eutrombicula cochinocaensis infestation in llamas (Lama glama) in the Puna region of Argentina
title_sort eutrombicula cochinocaensis infestation in llamas lama glama in the puna region of argentina
topic Llama
Enfermedades de los Animales
Parásitos
Histología
Llamas
Lama glama
Trombiculidae
Animal Diseases
Parasites
Histology
Eutrombicula cochinocaensis
Trombiculosis
Región Puna, Argentina
url http://hdl.handle.net/20.500.12123/22270
https://link.springer.com/article/10.1007/s11259-024-10310-6
https://doi.org/10.1007/s11259-024-10310-6
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