Currently there are no known mycotoxins produced by Serpula lacrymans that would be harmful to humans or animals.
Irritation and inflammation
No symptoms of irritation or inflammation have been attributed to Serpula sp.
No allergen specific compounds that are known for this fungus. However, existence of asthma associated with Serpula lacrymans has been documented. The sensitizing role of this fungus was confirmed in atopic and asthmatic individuals by both skin tests (see References For Dry Rot Fungus) and by bronchial provocation tests.
A small number of confirmed cases of hypersensitivity pneumonitis (allergic alveolitis) caused by Serpula lacrymans have been reported. Some authors have suggested using the term “lung dry rot” to describe this type of pneumonitis, since Serpula lacrymans could, together with other fungi found in damp environment contribute to triggering the immune response of allergic alveolitis (see References For Dry Rot Fungus).
Infection and colonization
No cases of human or animal infection has been associated with Serpula.