fungi aspergillus, black mold

aspergillus mold fungi illustration black 3d aspergillosis pulmonary moisture moldy mould reaction scientific science hyphae toxic toxin rendering up health microbiology fungus mycotoxin growth background allergic allergy laboratory asthma aflatoxin aspergilloma immunocompromised brain abscess culture mycetoma cyst mycotoxins carcinogen close danger flavus niger disease fumigatus colorful versicolor dangerous color