Trichoderma sp. is allergenic. It produces an antibiotic that is toxic to humans. It is capable of growing on other fungi. It is commonly found in soil, dead trees, pine needles, and paper. This mold can rapidly feed and grow on cellulose. Predominantly considered nonpathogenic Trichoderma viride was reported in a case of infection in a pulmonary cavity, as peritonitis in a dialysis patients and as a asperihepatic infection in a liver transplant patient (St-Germain 200).