Occupational asthma

This is the authors' abstract. We don't add key points for this paper.

A 22 year old man thought he might have hay fever.Several months later his general practitioner diagnosed asthma.It later emerged that his symptoms were associated with his work in a bakery, and he was referred to an occupational lung disease specialist who diagnosed occupational asthma. What is occupational asthma?Occupational asthma is caused by an immune reaction to specific agents that are inhaled in the workplace.It differs from asthma that is aggravated at work by non-specific factors-for example, exposure to dusts or fumes, cold air, physical exertion, and even shift patterns.