Martínez Herrero, María del CarmenSansano Maestre, JoséGonzález González, FernandoLópez Márquez, IreneGómez Muñoz, María TeresaGarijo Toledo, María MagdalenaOrtega Porcel, JoaquínProducción Científica UCH 2020UCH. Departamento de Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos2020-12-102020-12-102020-07-01Martínez-Herrero, M.C., Sansano-Maestre, J., Ortega, J., González, F., López-Márquez, I., Gómez-Muñoz, M.T. et al. (2020). Oral trichomonosis: description and severity of lesions in birds in Spain. Veterinary Parasitology, vol. 283 (jul.), art. 109196. DOI: https://doi.org/10.1016/j.vetpar.2020.1091960304-4017.http://hdl.handle.net/10637/11726Este artículo se encuentra disponible en la página web de la revista en la siguiente URL: https://www.sciencedirect.com/science/article/abs/pii/S1383576920301264This is the pre-peer reviewed version of the following article: Martínez-Herrero, M.C., Sansano-Maestre, J., Ortega, J., González, F., López-Márquez, I., Gómez-Muñoz, M.T. et al. (2020). Oral trichomonosis: description and severity of lesions in birds in Spain. Veterinary Parasitology, vol. 283, art. 109196, which has been published in final form at https://doi.org/10.1016/j.vetpar.2020.109196.Este es el pre-print del siguiente artículo: Martínez-Herrero, M.C., Sansano-Maestre, J., Ortega, J., González, F., López-Márquez, I., Gómez-Muñoz, M.T. et al. (2020). Oral trichomonosis: description and severity of lesions in birds in Spain. Veterinary Parasitology, vol. 283, art. 109196, que se ha publicado de forma definitiva en https://doi.org/10.1016/j.vetpar.2020.109196.Avian trichomonosis is a parasitic disease caused by the flagellated protozoan Trichomonas gallinae. Columbiformes are the reservoir host of the parasite, with high levels of infection, but also other domestic and wild birds from a variety of orders are susceptible to the infection and development of gross lesions. A total of 94 clinical cases diagnosed of trichomonosis were selected for the categorization of their lesions at the upper digestive tract. The affected birds were classified into three different categories (mild, moderate and severe) based on the size, the depth and the location of the lesions. Mild grade is found in small and superficial lesions far from the oropharyngeal opening; moderate grade for bigger and deeper lesions, and severe grade for very big and deep lesions that impede swallowing or affect the skull. This revision of lesions will help to understand the pathologic and epidemiological information about avian trichomonosis. Furthermore, it will be helpful for the evaluation, prognosis and possible treatments among veterinarians and related professionals.application/pdfesopen accessAves - Enfermedades infecciosas.Trichomoniasis.Birds - Parasites.Aves - Parásitos.Tricomoniasis.Birds - Communicable diseases.Artículohttps://doi.org/10.1016/j.vetpar.2020.109196https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es