This image was captured in 2005, by Centers for Disease Control and Prevention (CDC) Health Scientist, Ginger L. Chew, Sc.D., and depicts a culture plate which contained malt extract agar (MEA) that had been inoculated with an air sample obtained on a filter membrane inside a home flooded by Hurricane Katrina, and which exhibited visible mold growth on its walls and furnishings. After incubation, the culture gave rise to these mold colonies, which varied in size, color, and texture. The black colonies were comprised of the fungal microorganism, Aspergillus niger, a type of black mold commonly found in homes, and many of the tan-colored colonies represented species of the fungal microorganism, Paecilomyces.
“Aspergillosis is an infection caused by Aspergillus, a common mold (a type of fungus) that lives indoors and outdoors. Most people breathe in Aspergillus spores every day without getting sick. However, people with weakened immune systems or lung diseases are at a higher risk of developing health problems due to Aspergillus. The types of health problems caused by Aspergillus include allergic reactions, lung infections, and infections in other organs.”
For more on the subjects of aspergillosis, and mold in general, please visit the links below.