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  • Title: Documentation of Legionella pneumophila and Mycobacterium tuberculosis co-existence in a patient with acute respiratory distress syndrome.
    Author: Metaxa-Mariatou V, Ikonomou A, Tzortzi A, Mihalatos M, Vakalis N, Nasioulas G.
    Journal: In Vivo; 2003; 17(4):365-7. PubMed ID: 12929592.
    Abstract:
    BACKGROUND: Bacterial lung infections are common causes of ARDS and, despite intensive research for decades, the mortality rate remains very high. Only two reports suggest the co-existence of Legionnaires' disease and pulmonary tuberculosis based mainly on clinical presentation and serologic results for Legionella and positive cultures for Mycobacterium tuberculosis (M. tuberculosis). MATERIALS AND METHODS: A variety of specimens from a 61-year-old man was used for detection of Legionella pneumophila (L. pneumophila) and M. tuberculosis by PCR. Further identification of the pathogens was carried out by sequence analysis. RESULTS: L. pneumophila region mip was detected in bronchial washings, bronchoalveolar lavage and urine specimens of the patient. M. tuberculosis regions IS6110 and mtp40 were detected in endo-bronchial secretions and bronchoalveolar lavage. CONCLUSION: By using polymerase chain reaction (PCR) and DNA sequencing we documented L. pneumophila and M. tuberculosis co-existence, in multiple specimens of a patient presenting with acute respiratory distress syndrome (ARDS). Furthermore, the efficacy of the specific antibiotic treatment, based on the PCR results, suggest the co-existence of these two pathogens.
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