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  • 标题:Nocardia isolation from clinical samples with the paraffin baiting technique
  • 本地全文:下载
  • 作者:Mehdi Fatahi Bafghi ; Parvin Heidarieh ; Tahereh Soori
  • 期刊名称:Germs
  • 印刷版ISSN:2248-2997
  • 出版年度:2015
  • 卷号:5
  • 期号:1
  • 页码:12-16
  • DOI:10.11599/germs.2015.1066
  • 出版社:European HIV/AIDS and Infectious Diseases Academy
  • 摘要:Background The genus Nocardia is a cause of infection in the lungs, skin, brain, cerebrospinal fluid, eyes, joints and kidneys. Nocardia isolation from polymicrobial specimens is difficult due to its slow growth. Several methods have been reported for Nocardia isolation from clinical samples. In the current study, we used three methods: paraffin baiting technique, paraffin agar, and conventional media for Nocardia isolation from various clinical specimens from Iranian patients. Methods In this study, we examined 517 samples from various clinical specimens such as: sputum of patients with suspected tuberculosis, bronchoalveolar lavage, sputum of patients with cystic fibrosis, tracheal aspirate, cutaneous and subcutaneous abscesses, cerebrospinal fluid, dental abscess, mycetoma, wound, bone marrow biopsy, and gastric lavage. All collected specimens were cultured on carbon-free broth tubes (paraffin baitingtechnique), paraffin agar,Sabouraud dextrose agar, and Sabouraud dextrose agar with cycloheximide and were incubated at 35°C for one month.Results Seven Nocardiaspp. were isolated with paraffin baiting technique, compared with 5 positive results with the paraffin agar technique and 3 positive results with Sabouraud dextrose agar with and without cycloheximide. The prevalence of nocardial infections in our specimens was 5.28%.Conclusion In the present study, the use of the paraffin baiting technique appeared to be more effective than other methods for Nocardia isolation from various clinical specimens.
  • 关键词:Nocardia; paraffin baiting technique; paraffin agar; Sabouraud dextrose agar
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