Hazard criteria and categorization of microbes classification systems

Nigel Silman*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Citation (Scopus)


There are four defined HGs used worldwide, which categorize pathogenic microorganisms based on the following criteria: • whether the agent is pathogenic for humans and/or animals; • whether the agent is a hazard to employees; • whether the agent is transmissible to the community; • whether there is effective treatment or prophylaxis available.

Original languageEnglish
Title of host publicationWorking in Biosafety Level 3 and 4 Laboratories
Subtitle of host publicationA Practical Introduction
PublisherWiley Blackwell
Number of pages8
ISBN (Electronic)9783527675357
ISBN (Print)9783527334674
Publication statusPublished - 6 Sep 2014


  • Biological agent
  • Biosafety levels
  • European Directive
  • Guidelines
  • Hazard groups
  • Microorganisms
  • Pathogens
  • Regulations


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