The following is a partial list of occupations and major causative antigens that put a patient at<unk>  of HP. Microbial agents like fungi or bacteria in humidifiers, heating systems, and air conditioners found in homes and offices. Exposure to certain chemicals, such as isocyanates or acid anhydrides, can also increase the<unk>  of hypersensitivity pneumonitis in susceptible individuals.
Byssinosis risk factors
Rhinitis risk factors
Kyphosis risk factors
Zygomycosis risk factors
Sporotrichosis risk factors
Eczema risk factors
Psittacosis risk factors
Diphyllobothriasis risk factors