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Document ID (ISN)61209
CIS number 93-2063
ISSN - Serial title 0271-3586 - American Journal of Industrial Medicine
Year 1993
Convention or series no.
Author(s) Mamolen M., Lewis D.M., Blanchet M.A., Satink F.J., Vogt R.L.
Title Investigation of an outbreak of "Humidifier Fever" in a print shop
Bibliographic information Mar. 1993, Vol.23, No.3, p.483-490. 19 ref.
Abstract An outbreak of "humidifier fever" affected 16 (57%) of 28 workers in a print shop. The most common symptoms were myalgia, chills or subjective fever, and cough. Illness began 5-13 hours after entering the workplace, and lasted 2-24 hours. A humidifier in use on the day of the outbreak was found to be contaminated with fungi, amoebae, and Gram-negative bacteria. The risk of illness was highest for those who had been on the job three months before the outbreak, a time when the humidifier was in constant use. Serological studies of print shop workers showed positive reactions to extracts of organisms isolated from the humidifier, but could neither distinguish ill from well workers, nor identify causative organisms. The presence of endotoxin-producing bacteria and the clinical syndrome are consistent with an organic dust toxic syndrome. Previous exposure appeared to be the major risk factor for illness.
Descriptors (primary) printing industry; extrinsic allergic alveolitis; organic dust; fungi; air conditioner disease; bacterial toxins
Descriptors (secondary) lung diseases; air humidification; aerosols
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Occupational pathology
Broad subject area(s) Biological hazards
Browse category(ies) Pneumoconioses
Printing, photography and photocopying industry