Critical insights on fungal contamination in schools: a comprehensive review of assessment methods

Renata Cervantes1,2, Pedro Pena1,2, Bruna Riesenberger1

  • 1H&TRC-Health and Technology Research Center, ESTeSL-Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Lisbon, Portugal.

PubMed

Insights

Fungal contamination in schools impacts indoor air quality and student health, causing allergies and respiratory issues. Geographic location and season influence fungal presence, necessitating regular monitoring and targeted investigations for better health protection.

Area of Science:

  • Environmental Science
  • Public Health
  • Mycology

Background:

  • Fungal contamination in schools poses significant risks to indoor air quality (IAQ) and student health, exacerbating allergies and respiratory conditions.
  • Specific fungal species like *Aspergillus fumigatus* and *Fusarium* sp. are recognized indoor allergens and potent respiratory disease inducers.

Purpose of the Study:

  • To investigate the influence of geographic location and season on filamentous fungi within school environments.
  • To identify key fungal species of concern for student health, considering both allergenic and toxicological potentials.

Main Methods:

  • A systematic review and data extraction from 6,659 screened articles, selecting 47 relevant studies.
  • Analysis of sampling techniques, analytical methods, climatic conditions, and identified fungal species.
  • Emphasis on combining active and passive sampling with molecular genetic analysis for comprehensive fungal identification.

Main Results:

  • Geographic location and season are significant factors affecting fungal prevalence in schools.
  • Highlights the need for regular IAQ monitoring and the utility of diverse sampling and molecular methods.
  • Identifies specific fungi (*Aspergillus fumigatus*, *Fusarium* sp., Mucorales, *Stachybotrys atra*, *Aspergillus* section *Flavi*) requiring targeted monitoring due to health implications.

Conclusions:

  • Consistent IAQ measurement and advanced analytical techniques are crucial for understanding and mitigating fungal risks in schools.
  • Further research and standardized data formatting are needed to develop effective regulatory frameworks for student health protection.
  • Recommendations include evaluating building infrastructure, ventilation, cleaning protocols, and parental input to minimize fungal threats.

Related Concept Videos

Differential Staining Technique01:26

Differential Staining Technique

Differential staining is an essential microbiological technique that exploits variations in cell wall structures to classify and identify microorganisms. It facilitates the distinction of bacteria, aiding in diagnostic and research applications. Two of the most widely used differential staining methods are Gram staining and acid-fast staining, both of which rely on the chemical and structural differences in bacterial cell walls.Gram Staining TechniqueGram staining differentiates bacteria by...
Special Staining Techniques01:13

Special Staining Techniques

Specialized staining techniques play a vital role in microbiology by enabling the visualization of specific bacterial structures that remain undetectable with standard microscopy methods. These techniques not only enhance the structural visualization of bacterial cells but also provide critical insights into their pathogenicity and classification. Additionally, they support diagnostic and research endeavors in microbiology by identifying key bacterial features.Capsule Staining for Virulence...
Methods for Controlling Microbial Growth01:29

Methods for Controlling Microbial Growth

Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
Methods to Assess Microbial Populations01:30

Methods to Assess Microbial Populations

Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...
Methods to Assess Microbial Communities01:19

Methods to Assess Microbial Communities

Microbial communities, comprising bacteria, archaea, and eukaryotic microorganisms, inhabit diverse ecosystems and play crucial roles in environmental and biological processes. Their diversity is defined by three main parameters: species richness (the number of distinct species), species abundance (the relative quantity of each species), and species evenness (how uniformly individual species are distributed in various locations). These factors together shape the structure and ecological balance...