Nocardia nova identification in a transtracheal wash of a horse with recurrent airway obstruction # Identificación de Nocardia nova en lavado transtraqueal de un caballo con obstrucción recurrente de las vías aéreas

RESUMEN Un equino con enfermedad pulmonar recurrente presento disnea, secrecion nasal purulenta bilateral y sonidos anormales de los pulmones. El cultivo microbiologico, citologico e identificacion molecular (16S rRNA secuencias de genes) se realizo con material obtenido del lavado transtraqueal, lo que permitio la identificacion de Nocardia nova , un agente asociado a las alteraciones respiratorias inusuales en caballos. Palabras clave : equinos, nocardiosis, neumonia, obstruccion recurrente de las vias aereas. SUMMARY A horse with recurrent airway disease was presented with dyspnea, mucopurulent bilateral nasal discharge and abnormal lung sounds. Microbiological culture, cytological examination and molecular identification (16S rRNA gene sequence) were performed with the transtracheal wash material and allowed the identification of Nocardia nova, an uncommon agent associated with equine respiratory abnormalities .Key words : equine, nocardiosis, pneumonia, recurrent airway obstruction.