Aspergillus spp.

• Worldwide

• Common laboratory contaminants

Aspergillus cleistothecia Professor Andrew N. Rycroft, BSc, PHD, C. Biol.F.I.Biol., FRCPath Widely found in nature Colonise a wide range of substrates under different environmental conditions Abundant in hay, straw and grain which have heated during storage Pathogenic species include Aspergillus fumigatus, A. flavus, A. nidulans, A.niger and A. terreus May cause primary or secondary disease Infection may be acute, chronic or benign Produces Aflatoxin Causes Aspergillosis