First Report of the Isolation of Nocardia thailandica from the Bronchoalveolar Lavage of a Patient in Iran

Nocardiae are gram-positive, filamentous, aerobic, relatively slow-growing, and weakly acid-fast bacteria which cause nocardiosis in humans. we describe a 53-year-old patient with chronic bronchitis referred to al-zahra hospital, isfahan. a bronchial washing sample was taken from the patient. a nocardia-like microorganism was detected in microscopic evaluation. based on the phenotypic and 16s rrna gene sequencing, the isolate was identified as nocardia thailandica. the patient was treated with trimethoprim-sulfamethoxazole and linezolid. this is the first report of the isolation of nocardia thailandica from iran.