Table 1.

Prevention of SI-OA.

Prevention	Measures
Primary	Avoidance of the introduction of new possibles sensitizing agents in the workplace Using safe alternatives to sensitizing agents Reduction of the sensitizing potential of agents by chemical or physical process Education programmes for workers to use safe practices at work Occupational hygiene measures to reduce exposure to work sensitizers (e.g., use of robotics, containment, ventilation) Monitoring and controlling exposure levels in the workplace
Secondary (early detection)	Institute medical-surveillance programs for workers at risk (e.g., periodic respiratory questionnaires, spirometry) Education of healthcare workers about OA Education of workers about the risk of OA and to recognize the symptoms of the disease (e.g., workplace or public education programs, information by healthcare provider)
Tertiary (appropiate treatment)	Evaluation of symptomatic workers to achieve an early and accurate diagnosis Workers’ relocation to reduce the risk of further exposure once the diagnosis is confirmed Controlling other possible triggers of asthma Pharmacological treatment to control asthma Patient’s assistance with work-compensation claim to limit socio-economic effects of the diagnosis Monitoring of the patient’s asthma control in future work environment to ensure safe placement.

Adapted from Cormier et al. [3] and Tarlo et al. [6].