Laboratory animal workers, veterinarians

Dander, urine proteins

Food processing

Shellfish, egg proteins, pancreatic enzymes, papain, amylase

Dairy farmers

Storage mites

Poultry farmers

Poultry mites, droppings, feathers

Granary workers

Storage mites, aspergillus, indoor ragweed, grass pollen

Research workers

Locusts

Fish food manufacturing

Midges

Detergent manufacturing

Bacillus subtilis enzymes

Silk workers

Silkworm moths and larvae

Bakers

Flour

Food processing

Coffee bean dust, meat tenderizer (papain), tea

Farmers

Soybean dust

Shipping workers

Grain dust (molds, insects, grain)

Laxative manufacturing

Ispaghula, psyllium

Sawmill workers, carpenters

Wood dust (western red cedar, oak, mahogany, zebrawood, redwood, Lebanon cedar, African maple, eastern white cedar)

Electric soldering

Colophony (pine resin)

Cotton textile workers

Cotton dust

Nurses

Psyllium, latex

Refining

Platinum salts

Plating

Nickel salts

Diamond polishing

Cobalt salts

Stainless steel welding

Chromium salts

Manufacturing

Aluminum fluoride

Beauty shop

Persulfate

Refinery workers

Vanadium

Welding

Stainless steel fumes

Manufacturing

Antibiotics, piperazine, methyldopa, salbutanol, cimetidine

Hospital workers

Disinfectants (sulfathiazole, chloramine, formaldehyde, psyllium, glutaraldehyde)

Anesthesiology

Enflurane

Poultry workers

Aprolium

Fur dyeing

Paraphenylene diamine

Rubber processing

Formaldehyde, ethylenediamine, phthalic anhydride