JUERGEN BERGER / SCIENCE PHOTO LIBRARY JUERGEN BERGER / SCIENCE PHOTO LIBRARY
Aspergillus fumigatus fungus. Coloured scanning electron micrograph (SEM) of fruiting bodies of the fungus Aspergillus fumigatus. This fungus causes aspergillosis in humans. The round structures (conidia) are covered in tiny spores, about to be released into the air. A. fumigatus grows in household dust and decaying vegetable matter. Although harmless to healthy people, the fungus can cause complications in people with respiratory complaints or weakened immune systems. Inhalation of the spores may lead to aspergill- osis, infection of the lungs and bronchi, which can be fatal in some cases. Magnification unknown.
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