Module 4: Organic Dusts - Lecture (Continued)

ORGANIC DUST TOXIC SYNDROME:

HYPERSENSITIVITY PNEUMONITIS (EXTRINSIC ALLERGIC ALVEOLITIS):

Table 5. Causes of Hypersensitivity Pneumonitis (HP)
Antigen Exposure Syndrome
Bacteria
Thermophilic bacteria:
Micropolyspora foeni
Thermoactinomycetes vulgaris
T. sacchari
T. candidus


Nonthermophilic bacteria:
Bacillus subtilis
B. cereus

"Moldy" hay
"Moldy" sugarcane
Mushroom compost
Heated water reservoirs



Water
Detergent

Farmer's lung
Bagassosis
Mushroom worker' lung
Humidifier lung



Humidifier lung
Washing powder lung
Fungi
Aspergillus sp.

Aspergillus clavatus
Penicillium casei
P. roquefortii
Alternaria sp.
Cryptostroma corticale
Graphium
Aurebasidium pullans
Merulius lachrimans
Penicillium frequentans
Aureobasidium pullulans
Cladosporium sp.
Thichosporon cutaneum

"Moldy" hay
Water
Barley
Cheese

Wood pulp
Wood bark
Wood dust

Rotten wood
Cork dust
Water
Hot tub mists
Damp wood and mats

Farmer's lung
Ventilator pneumonitis
Malt worker's lung
Cheese washer's lung

Wood pulp worker's lung
Maple bark stripper's lung
Sequoiosis

Dry rot lung
Suberosis
Humidifier lung
Hot tub HP
Japanese summer-type HP
Amoebae
Naegleria gruberi
Acanthamobea polyphaga
A. castellani


Contaminated water


Humidifier lung
Animal proteins
Avian proteins
Urine, serum, pelts
Wheat weevil (Sitophilus granarius)

Bird droppings, feathers
Rats, gerbils
Infested flour

Bird breeder's lung
Animal handler's lung
Wheat weevil lung

EXAMPLES OF HEALTH EFFECTS OF ORGANIC DUSTS COMMONLY ENCOUNTERED IN OCCUPATIONAL SETTINGS:

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Postgraduate Diploma in Occupational Health (DOH) - Modules 3 – 5: Occupational Medicine & Toxicology by Prof Rodney Ehrlich & Prof Mohamed Jeebhay is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
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