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Year : 2001  |  Volume : 19  |  Issue : 4  |  Page : 201-205

Prevalence of aspergillosis in chronic lung diseases

1 Department of Microbiology, JN Medical College, AMU Aligarh - 202 002, U.P, India
2 Department of TB & Chest, JN Medical College, AMU Aligarh - 202 002, U.P, India

Correspondence Address:
A Malik
Department of Microbiology, JN Medical College, AMU Aligarh - 202 002, U.P
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Source of Support: None, Conflict of Interest: None

PMID: 17664833

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Eighty eight patients of chronic lung diseases (CLD) attending TB and Chest department of J.N. Medical college Hospital were studied to find out the prevalence of Aspergillus in Broncho-alveolar Lavage (BAL) and anti- aspergillus antibodies in their sera. Direct microscopy and fungal culture of BAL was done. Antibodies were studied by immunodiffusion (ID) and Enzyme linked immunosorbent assay (ELISA). Dot blot assay for anti-aspergillus antibodies was also performed in sera of patients which were either positive by ID or by ELISA. Aspergillus was isolated in culture from 13(14.7%) cases of CLD, while, 30.6% cases showed anti-aspergillus antibodies by serological methods. Aspergillus fumigatus was the predominant species isolated. 17(19.3%) cases of CLD showed antibody against Aspergillus by ID, 22(25%) by ELISA, while 19 of 27 seropositive cases also showed positive results by Dot Blot assay. In cases of bronchogenic carcinoma and pulmonary tuberculosis, anti-aspergillus antibodies were detected equally by ID and ELISA in 21.42% and 21.05% cases respectively. In bronchial asthma, the antibodies could be detected in 60% cases by ELISA, while, in only 10% cases by ID. ELISA was found more sensitive than ID for detection of anti-aspergillus antibodies. The sensitivity of Dot Blot lies some what between ID and ELISA. It is concluded that prevalence of Aspergillosis is quite high in chronic lung diseases, culture and serological test should be performed in conjunction and more than one type of serological tests should be performed to establish the diagnosis.

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2004 - Indian Journal of Medical Microbiology
Published by Wolters Kluwer - Medknow

Online since April 2001, new site since 1st August '04