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Invertebrates as a source of emerging human pathogens
Nicholas R Waterfield1, Brendan W Wren, Richard H Ffrench-Constant
1Centre for Molecular Microbiology, Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, UK.
Nature Reviews. Microbiology
|September 21, 2004
Summary
Invertebrate-associated bacteria are a likely source of emerging human pathogens and novel virulence factors. Studying these bacteria helps understand pathogen evolution and identify future threats.
Area of Science:
- Microbiology
- Evolutionary Biology
- Pathogen Discovery
Background:
- The origins of many emerging human pathogens remain largely unknown.
- Invertebrates host a vast reservoir of bacteria, many with evolved virulence factors.
- These bacteria may influence the evolution of human pathogens.
Purpose of the Study:
- To investigate the hypothesis that invertebrate-associated bacteria serve as a source for human pathogens.
- To explore the role of bacteria-invertebrate interactions in the evolution of virulence.
Main Methods:
- Comparative analysis of closely related bacterial species.
- Examining insect-associated bacteria and their human pathogenic counterparts.
- Literature review of existing evidence on bacterial virulence evolution.
Main Results:
- Invertebrate-associated bacteria possess virulence factors that can overcome host immune responses.
- These bacteria represent a potential source for novel human pathogenic strains.
- The spread of virulence factors from invertebrate-associated bacteria to human pathogens is plausible.
Conclusions:
- Bacteria-invertebrate interactions are a significant, underappreciated reservoir for emerging human pathogens.
- Understanding these interactions is crucial for predicting and mitigating future infectious disease threats.
- Further research into invertebrate-associated bacteria can reveal novel virulence mechanisms and evolutionary pathways.