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Co-occurrence of bacterial and fungal secondary metabolites measured in moisture-damaged homes
Multi-analyte analysis of samples from moisture-damaged indoor environments detected both bacterial and fungal secondary metabolites in the sampled materials.
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This library reports what studies found. An entry describes a study's design, its findings in its own terms, and its limits. Nothing here is a claim about what a Sage Co. home does, delivers, or prevents.
Last reviewed August 30, 2026.
What they studied
- Sixty-nine samples of building material and dust from moisture-damaged indoor environments.
- Analysis by liquid chromatography–tandem mass spectrometry targeting 186 microbial secondary metabolites.
- Comparison of metabolites found in wet versus non-damaged structures.
What they found
- The authors reported that every sampled material tested positive for at least one of the targeted metabolites.
- Streptomyces-associated compounds including valinomycin were reported only in samples from wet structures.
- Bacterial and fungal metabolites were reported to occur together in the damaged samples.
What this study does not establish
- Material and dust sampling; airborne concentrations and inhaled dose were not measured.
- Detection of a metabolite does not establish an exposure level or a health effect.
- No occupant health outcomes were assessed.
- This entry reports the study. It is not a statement about any building Sage Co. designs or constructs.
Source
Täubel M, Sulyok M, Vishwanath V, Bloom E, Turunen M, Järvi K, Kauhanen E, Krska R, Hyvärinen A, Larsson L, Nevalainen A (2011). Co-occurrence of toxic bacterial and fungal secondary metabolites in moisture-damaged indoor environments. Indoor Air 21(5):368–375.
mycotoxinsbacteriasamplingbuilding materials
Elsewhere under Moisture & Mold
- Meta-analyses of respiratory health outcomes reported in damp or moldy homes
- Review of epidemiologic evidence on dampness, mold, and dampness-related agents
- Bacteria, molds, and toxins measured in water-damaged building materials
- Actinomycetes and non-tuberculous mycobacteria measured against respiratory findings in a water-damaged office building
- Review of actinobacteria in indoor environments and reported respiratory effects
- Culture and molecular methods compared for actinobacteria on water-damaged building material
- Inflammatory response in mice after instillation of Streptomyces spores from a moldy building
- Chaetomium globosum prevalence in surveyed water-damaged buildings and metabolite production on building materials
- Metabolites of Wallemia sebi measured at water activity below common mold-growth thresholds
- Associations between fungal species and specific water-damaged building materials
- Systematic review of fungal exposure and hypersensitivity pneumonitis
- Review of Stachybotrys chartarum, trichothecene mycotoxins, and damp building–related illness
- Immune response measured after single versus repeated Stachybotrys lung exposures in mice
- Nasal and olfactory effects of satratoxin G measured in rhesus monkeys
- Olfactory neuron loss and inflammation measured in mice after intranasal satratoxin G
- Lung inflammation measured in mice exposed to Aspergillus versicolor spores from a moisture-damaged building
- Inflammatory gene expression measured in macrophages exposed to toxins from damp-building fungi
- Lung responses measured in mice exposed to purified toxins from building-isolated Penicillium species
- Human brain cell responses measured at satratoxin concentrations reported from water-damaged buildings
- Time-series and clinical-trial data reported on illness in water-damaged building occupants
- Review of proposed injury mechanisms from exposure to water-damaged buildings
- Neuropsychological and electrocortical measures compared between mold-exposed subjects and controls