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Fungal growth in buildings: the aerobiological perspective

Burge, H. A.
2001
In "Bioaerosols, Fungi and Mycotoxins: Health Effects, Assessment, Prevention and Control", Edited by Johanning, E., Boyd Printing, Albany, New York


Burge, H. A., (2001), "Fungal growth in buildings: the aerobiological perspective", In "Bioaerosols, Fungi and Mycotoxins: Health Effects, Assessment, Prevention and Control", Edited by Johanning, E., Boyd Printing, Albany, New York.
Abstract:
In the search for inexpensive shelter, we have developed indoor environments that are conducive to fungal contamination. While active fungal growth indoors is usually inappropriate and should be controlled, assessing specific health risks associated with such growth remains a challenge. Epidemiological tools are often used to determine relative risks associated with occupancy by groups of people in environments with or without certain factors, including fungal growth, but do not always make clear the role of the growth in the disease process in indiviudals. Aerobiologists assess relationships along a pathway that includes sources, dispersion and decay of aerosols, exposuree to individuals, doses of agents, and responses. Both approaches yield valuable information, but require the development of testable hypotheses.

As a model, we can apply the epidemiological and aerobiological processes to the Cleveland hemosiderosis outbreak, and consider the following hypotheses:

1. The Cleveland babies that develop hemosiderosis are more likely to live in moldy homes than those that did not develop the diseease, all other things being equal.

2. The Cleveland babies that developed hemosiderosis are more likely to live in homes with Stachybotrys than those that did not develop the disease, all other things being equal.

3. (Aerobiology) Babies that developed disease were likely to have received a dose of Stachybotrys chartarum toxins sufficient to cause the reported symptoms.

Some evidence exists to support Hypothesis 1. Hypothesis 2 is suppored by very little evidence and Hypothesis 3 has not been tested. Until Hypotheses 2 and 3 are adequately tested and verified, assuming a cause/effect relationshipfor Stachybotrys toxins in these cases is premature. Premature establishement of cause/effect relationships may lead to unneccessaary conceern, and prevent discovery of actual caauses of disease. This hypothesis development and testing process is essential if we are to accurately determine the role of indoor fungi in human disease.


Related Resources:
  • This link has not been checked.Bioaerosols, Fungi and Mycotoxins, Ed. by Johanning, E.
    "papers presented at the September, 1998 Third International Conference in Saratoga Springs, New York. clinical and epidemiological studies and technical reports on an emerging public health topic affecting people in indoor environments at work and at home."


Related Concepts


Author Information and Other Publications Notes
Burge, H. A.
  1. An update on pollen and fungal spore aerobiology
  2. Characterization of fungi occurring on "new" gypsum wallboard
  3. Distribution of various fungi reported on different indoor substrates
  4. Dustborne and airborne fungal propagules represent a different spectrum of fungi with differing relations to home characteristics
  5. Health risk assessment of fungi in home environments
  6. Indoor allergens: assessing and controlling adverse health effects
  7. Moisture, organisms, and health effects
  8. Populations and determinants of airborne fungi in large office buildings
  9. Quantification of ergosterol and 3-hydroxy fatty acids in settled house dust by gas chromatography-mass spectrometry: Comparison with fungal culture and determination of endotoxin by a Limulus amebocyte lysate assay
  10. Review of concentration standards and guidelines for fungi in indoor air  



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