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Volume 56, Issue 10

Assessment of four serological techniques in the immunological diagnosis of farmers' lung disease Free

Abstract

Farmers' lung disease (FLD) is a pulmonary disease that results from repeated inhalation of antigens from mouldy hay or straw. The objective of this prospective study was to assess the reliability of four serological techniques in FLD diagnosis. Sera from 15 consecutive patients with FLD, 15 healthy control farmers and 30 urban controls were analysed using four serological techniques [electrosyneresis (ES), Ouchterlony double diffusion (DD), ELISA and Western blot (WB)] with four antigens (, , and ). In the authors' region, ES on cellulose acetate with antigen was the most relevant diagnostic tool for discriminating FLD patients from healthy exposed farmers (sensitivity 87 %, specificity 100 %). DD tests were in accordance with ES, but their discriminatory power was lower. No threshold indicating both good sensitivity and specificity could be established with ELISA. WB analysis failed to identify specific bands for FLD. This study demonstrates the efficacy of determining precipitin levels with an appropriate technique, using a panel of antigens consistent with the specific exposure of a given area.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): DD, Ouchterlony double diffusion , ES, electrosyneresis , FLD, farmers' lung disease , ROC, receiver-operating characteristic and WB, Western blot
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2007-10-01
2024-04-20
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Assessment of four serological techniques in the immunological diagnosis of farmers' lung disease
J. Med. Microbiol. 56, 1317 (2007); https://doi.org/10.1099/jmm.0.46953-0
/content/journal/jmm/10.1099/jmm.0.46953-0
/content/journal/jmm/10.1099/jmm.0.46953-0
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