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Hypersensitivity pneumonitis due to an ultrasonic humidifier.

AbstractWe describe a woman with hypersensitivity pneumonitis that was related to using a home ultrasonic humidifier. A micronodular infiltrate was seen in her chest radiograph. The inhalation challenge test was performed with the humidifier, and she exhibited a positive response. The cultures of the humidifier water grew Candida albicans, Rhodotorula spp., and Aspergillus spp. The test for precipitating antibodies against the humidifier water gave a positive response, and specific IgG, IgM, and IgA antibodies against extracts of A. fumigatus, C. albicans, and Rhodotorula spp. were demonstrated in the patient's serum by ELISA. A strong, dose-dependent inhibition of Rhodotorula IgG-ELISA by humidifier water was observed, suggesting that Rhodotorula might be the cause of hypersensitivity pneumonitis in this patient.
AuthorsJ A Alvarez-Fernández, S Quirce, J L Calleja, M Cuevas, E Losada (Affiliation: Department of Allergy, Hospital Ramón y Cajal, Madrid, Spain.)
JournalAllergy (Allergy) Vol. 53 Issue 2 Pg. 210-2 (Feb 1998) ISSN: 0105-4538 DENMARK
PMID9534923 (Publication Type: Case Reports, Journal Article)
Chemical References
  • Antibodies, Fungal
  • Antigens, Fungal
Topics
  • Adult
  • Air Conditioning (instrumentation)
  • Alveolitis, Extrinsic Allergic (etiology, immunology)
  • Antibodies, Fungal (analysis)
  • Antigens, Fungal (analysis)
  • Equipment Contamination
  • Female
  • Fungi (immunology, isolation & purification)
  • Humans
  • Humidity
  • Ultrasonics
  • Water Microbiology