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Background  Nontuberculous mycobacteria (NTM) have been reported to be increasing worldwide and its geographic distribution differs by region. The aim of this study was to describe the epidemiology and distribution of NTM in the eastern part of China.    Methods  Sputum samples were collected from 30 surveillance sites for tuberculosis drug resistance test from May 1, 2008 to December 31, 2008. Identification was performed using a biochemical test, multiplex PCR and GenoType Mycobacterium CM/AS assay.    Results  A total of 1779 smear positive clinical isolates were obtained, of which 60 (3.37%) were NTM. Five species/complex of NTM were identified;  M .  intracellulare  was the predominated species (68.33%), followed by  M .  abscessus-M .  immunogenum  (13.33%),  Mycobacterium spec . (10.00%),  M .  Kansasii  (6.67%) and  M .  peregrinum-M .  alvei-M .  septicum  (1.67%).    Conclusion    M .  intracellulare  was the main species of NTM in the eastern part of China and clinical physicians should pay more attention to NTM induced pulmonary disease.

The Epidemiology and Geographic Distribution of Nontuberculous Mycobacteria Clinical Isolates from Sputum Samples in the Eastern Region of China