Ophiostoma Keratocystic

Characteristics: As an allergen it has not been studied. Persons most likely to be affected would be lumberyard workers or carpenters. As a pathogen it has not been reported to infect humans or animals. A connection between Ophiostoma and the human pathogen Sporothrix schenckii has been proposed but not confirmed. There is no potential toxin production.

Description: It grows indoors. Most homes built with lumber have areas of growth on wood framing inside walls. On spore trap recognition, it’s not identifiable. On rare occasions the spores of Gonatobotryum, which grows parasitically on Ceratocystis, are seen on spore trap samples (an indirect indication of the presence of this group of fungi). On swab or tape lift samples, it has a distinctive fruiting bodies with long necks are easily identifiable.

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