Sarcoptes scabiei infestation in llamas (Lama glama) of the Argentine Puna: Clinical study, and morphological and molecular mite identification
Sarcoptic mange has been described in domestic South American camelids (SACs), exported to non-Andean countries, and in wild SAC in their natural habitat. Reports on the incidence of this infestation in llamas or alpacas raised in their original location, on the other hand, are missing. The present...
| Autores principales: | , , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2025
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/21197 https://www.sciencedirect.com/science/article/abs/pii/S2405939024002028 https://doi.org/10.1016/j.vprsr.2024.101166 |
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| author | Sosa, Fabiana Evangelina Quiroga, Amanda Alicia Medina Vallejo, Diego M. Micheloud, Juan Francisco Borsetti, Hugo M. Hernández, Nancy Florin-Christensen, Monica Romero, Sandra Raquel |
| author_browse | Borsetti, Hugo M. Florin-Christensen, Monica Hernández, Nancy Medina Vallejo, Diego M. Micheloud, Juan Francisco Quiroga, Amanda Alicia Romero, Sandra Raquel Sosa, Fabiana Evangelina |
| author_facet | Sosa, Fabiana Evangelina Quiroga, Amanda Alicia Medina Vallejo, Diego M. Micheloud, Juan Francisco Borsetti, Hugo M. Hernández, Nancy Florin-Christensen, Monica Romero, Sandra Raquel |
| author_sort | Sosa, Fabiana Evangelina |
| collection | INTA Digital |
| description | Sarcoptic mange has been described in domestic South American camelids (SACs), exported to non-Andean countries, and in wild SAC in their natural habitat. Reports on the incidence of this infestation in llamas or alpacas raised in their original location, on the other hand, are missing. The present study aimed to detect and characterize cases of sarcoptic mange in herds of llamas (Lama glama) raised in the high plateau region (Puna) of the province of Jujuy, Argentina. Mange-compatible lesions were found in 2 out of 45 examined llama herds, in which 7 and one affected animals were detected. Six llamas had an alopecic presentation, represented by hairless foci, accompanied by small dry crusts and a slightly greyish tone in the skin, while the other 2 showed a parakeratotic presentation, characterized by large crusts with serosanguineous drainage, in different parts of the body. Histopathology of skin biopsies revealed scarce mixed inflammatory infiltrate in the dermis and few acari in the epidermis, or abundant infiltrate and numerous acari, accompanying these two presentations, respectively. Microscopic examination of skin scrapings, as well as sequencing of a cytochrome oxidase subunit I gene fragment confirmed in all cases that the etiological agent was Sarcoptes scabiei. Interviews with the producers allowed the conclusion that the alopecic presentation corresponded to animals that had received some type of informal acaricide treatment. The parakeratotic form, on the other hand, corresponded to untreated animals, strongly suggesting that this is the typical manifestation of sarcoptic mange in llamas. To the best of our knowledge, this study is the first clinical, histopathological, parasitological, and molecular description of sarcoptic mange in llamas raised in the Andean region. This study also highlights the need for a complete anamnesis to reach an accurate diagnosis, and for validated protocols for the treatment of this disease in SACs. |
| format | info:ar-repo/semantics/artículo |
| id | INTA21197 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA211972025-02-12T10:19:16Z Sarcoptes scabiei infestation in llamas (Lama glama) of the Argentine Puna: Clinical study, and morphological and molecular mite identification Sosa, Fabiana Evangelina Quiroga, Amanda Alicia Medina Vallejo, Diego M. Micheloud, Juan Francisco Borsetti, Hugo M. Hernández, Nancy Florin-Christensen, Monica Romero, Sandra Raquel Sarcoptes scabiei Lama glama Llamas Mites Psoroptic Mange Animal Diseases Skin Diseases Llama Ácaro Sarna Psoróptica Enfermedades de los Animales Enfermedades de la Piel Región Andina Sarcoptic mange has been described in domestic South American camelids (SACs), exported to non-Andean countries, and in wild SAC in their natural habitat. Reports on the incidence of this infestation in llamas or alpacas raised in their original location, on the other hand, are missing. The present study aimed to detect and characterize cases of sarcoptic mange in herds of llamas (Lama glama) raised in the high plateau region (Puna) of the province of Jujuy, Argentina. Mange-compatible lesions were found in 2 out of 45 examined llama herds, in which 7 and one affected animals were detected. Six llamas had an alopecic presentation, represented by hairless foci, accompanied by small dry crusts and a slightly greyish tone in the skin, while the other 2 showed a parakeratotic presentation, characterized by large crusts with serosanguineous drainage, in different parts of the body. Histopathology of skin biopsies revealed scarce mixed inflammatory infiltrate in the dermis and few acari in the epidermis, or abundant infiltrate and numerous acari, accompanying these two presentations, respectively. Microscopic examination of skin scrapings, as well as sequencing of a cytochrome oxidase subunit I gene fragment confirmed in all cases that the etiological agent was Sarcoptes scabiei. Interviews with the producers allowed the conclusion that the alopecic presentation corresponded to animals that had received some type of informal acaricide treatment. The parakeratotic form, on the other hand, corresponded to untreated animals, strongly suggesting that this is the typical manifestation of sarcoptic mange in llamas. To the best of our knowledge, this study is the first clinical, histopathological, parasitological, and molecular description of sarcoptic mange in llamas raised in the Andean region. This study also highlights the need for a complete anamnesis to reach an accurate diagnosis, and for validated protocols for the treatment of this disease in SACs. IPAF Región Noroeste Fil: Sosa, Fabiana Evangelina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto De Investigación y Desarrollo Tecnológico para la Agricultura Familiar Región NOA; Argentina Fil: Sosa, Fabiana Evangelina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Quiroga, Amanda A. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto De Investigación y Desarrollo Tecnológico para la Agricultura Familiar Región NOA; Argentina Fil: Quiroga, Amanda A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Medina Vallejo, Diego M. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina. Fil: Micheloud, Juan Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Micheloud, Juan Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina. Fil: Borsetti, Hugo M. Universidad Nacional de Jujuy. Instituto de Estudios Celulares, Genéticos y Moleculares (ICeGeM); Argentina Fil: Hernández, Nancy. Universidad Nacional de Jujuy. Instituto de Estudios Celulares, Genéticos y Moleculares (ICeGeM); Argentina Fil: Hernández, Nancy. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ecorregiones Andinas (INECOA); Argentina Fil: Hernández, Nancy. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas (INECOA); Argentina Fil: Florin-Christensen, Monica. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Florin-Christensen, Monica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología Veterinaria; Argentina Fil: Romero, Sandra Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto De Investigación y Desarrollo Tecnológico para la Agricultura Familiar Región NOA; Argentina 2025-02-12T10:13:34Z 2025-02-12T10:13:34Z 2025-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/21197 https://www.sciencedirect.com/science/article/abs/pii/S2405939024002028 2405-9390 https://doi.org/10.1016/j.vprsr.2024.101166 eng info:eu-repograntAgreement/INTA/2019-PD-E5-I103-001, Desarrollo de tecnologías diagnósticas y estudios epidemiológicos para el control de enfermedades que afectan la producción animal y la salud pública info:eu-repograntAgreement/INTA/2019-PD-E2-I038-002, Evaluación, monitoreo y manejo de la biodiversidad en sistemas agropecuarios y forestales info:eu-repograntAgreement/INTA/2023-PD-L03-I096, Estrategias de restauración, valoración y conservación de la biodiversidad y servicios ecosistemicos info:eu-repograntAgreement/INTA/2019-PE-E1-I002-001, Tecnologías sostenibles para la estabilización y mejora de la competitividad de las cadenas productivas de ovinos, caprinos y camélidos sudamericanos info:eu-repograntAgreement/INTA/2019-PE-E6-I113-001, Abordaje integral para la conservación, mejoramiento y rescate de especies amenazadas de importancia para el SAAA en diferentes ambientes info:eu-repograntAgreement/INTA/2023-PD-L06-I114, Desarrollo y aplicación de métodos diagnósticos y epidemiológicos para la producción pecuaria sustentable y agroalimentaria en humanos con foco en Una Salud 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 Elsevier Veterinary Parasitology: Regional Studies and Reports 57 : 101166. (January 2025) |
| spellingShingle | Sarcoptes scabiei Lama glama Llamas Mites Psoroptic Mange Animal Diseases Skin Diseases Llama Ácaro Sarna Psoróptica Enfermedades de los Animales Enfermedades de la Piel Región Andina Sosa, Fabiana Evangelina Quiroga, Amanda Alicia Medina Vallejo, Diego M. Micheloud, Juan Francisco Borsetti, Hugo M. Hernández, Nancy Florin-Christensen, Monica Romero, Sandra Raquel Sarcoptes scabiei infestation in llamas (Lama glama) of the Argentine Puna: Clinical study, and morphological and molecular mite identification |
| title | Sarcoptes scabiei infestation in llamas (Lama glama) of the Argentine Puna: Clinical study, and morphological and molecular mite identification |
| title_full | Sarcoptes scabiei infestation in llamas (Lama glama) of the Argentine Puna: Clinical study, and morphological and molecular mite identification |
| title_fullStr | Sarcoptes scabiei infestation in llamas (Lama glama) of the Argentine Puna: Clinical study, and morphological and molecular mite identification |
| title_full_unstemmed | Sarcoptes scabiei infestation in llamas (Lama glama) of the Argentine Puna: Clinical study, and morphological and molecular mite identification |
| title_short | Sarcoptes scabiei infestation in llamas (Lama glama) of the Argentine Puna: Clinical study, and morphological and molecular mite identification |
| title_sort | sarcoptes scabiei infestation in llamas lama glama of the argentine puna clinical study and morphological and molecular mite identification |
| topic | Sarcoptes scabiei Lama glama Llamas Mites Psoroptic Mange Animal Diseases Skin Diseases Llama Ácaro Sarna Psoróptica Enfermedades de los Animales Enfermedades de la Piel Región Andina |
| url | http://hdl.handle.net/20.500.12123/21197 https://www.sciencedirect.com/science/article/abs/pii/S2405939024002028 https://doi.org/10.1016/j.vprsr.2024.101166 |
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