Occupational asthma after exposure to bioaerosols of dander, fur, and body wastes; Occupational asthma was reported in 13% of 296 laboratory animal workers. [Malo] Hazardous job tasks include sweeping and cleaning of cages and prolonged close association with animals or their dander, hair, scales, fur, saliva, sera, or body wastes. [See Hyperlink] Sensitized workers should be monitored for decline in respiratory function, and removal from exposure should be considered. [PMID 14573718] "The presence of the clinical symptoms associated with LA exposure and high FeNO [exhaled nitric oxide] levels should prompt further medical assessment in LA workers." [PMID 29858653] See "Allergens, laboratory animals."