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Published on: May 2, 2018
Mold and Human Health: a Reality Check.
Andrea T Borchers1, Christopher Chang1, M Eric Gershwin2
1Division of Rheumatology, Allergy and Clinical Immunology, Davis School of Medicine, University of California, 451 Health Sciences Drive, Suite 6510, Davis, CA, 95616, USA.
Most mold species are harmless, but some cause allergies, asthma, or infections, especially in immunocompromised individuals. Claims of "toxic mold syndrome" lack scientific evidence and are media-driven.
Area of Science:
- Mycology
- Environmental Health
- Clinical Medicine
Background:
- Millions of mold species exist, with most being non-pathogenic to humans.
- Certain molds can trigger allergic reactions, asthma, and hypersensitivity pneumonitis.
- Fungal infections are a concern, particularly for immunocompromised patients.
Purpose of the Study:
- To clarify the pathogenic potential of various mold species.
- To differentiate between scientifically recognized mold-related diseases and unsubstantiated claims.
- To address the public perception of "toxic mold syndrome" and its alleged health effects.
Main Methods:
- Review of existing scientific literature on mold exposure and associated health outcomes.
- Analysis of case reports and epidemiological studies related to fungal diseases.
- Evaluation of evidence supporting or refuting claims of "toxic mold syndrome" and infant pulmonary hemorrhage.
Main Results:
- Molds can cause allergies, asthma, hypersensitivity diseases (e.g., Farmer's lung), and infections (e.g., onychomycosis).
- Immunocompromised individuals are at higher risk for serious fungal infections like systemic candidiasis.
- No scientific evidence supports "toxic mold syndrome" or a link between "black mold" exposure and symptoms like fatigue, memory loss, or infant pulmonary hemorrhage.
Conclusions:
- While some molds pose health risks through allergies or infections, many public health concerns are not scientifically validated.
- "Toxic mold syndrome" and associated symptoms are attributed to media hype and misinterpretation, not proven mycotoxicosis.
- Further research may be needed, but current evidence does not link mold exposure to autoimmune diseases or the widely publicized "black mold" symptoms.
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