Related Experiment Video
Updated: Jun 8, 2026
Application of CRISPR Interference (CRISPRi) for Gene Silencing in Pathogenic Species of Leptospira
Published on: August 14, 2021
Leptospira as an emerging pathogen: a review of its biology, pathogenesis and host immune responses
Karen V Evangelista1, Jenifer Coburn
1Department of Microbiology & Molecular Genetics, Medical College of Wisconsin, Milwaukee, USA.
Abstract:
Leptospirosis, the most widespread zoonosis in the world, is an emerging public health problem, particularly in large urban centers of developing countries. Several pathogenic species of the genus Leptospira can cause a wide range of clinical manifestations, from a mild, flu-like illness to a severe disease form characterized by multiorgan system complications leading to death. However, the mechanisms of pathogenesis of Leptospira are largely unknown. This article will address the animal models of acute and chronic leptospire infections, and the recent developments in the genetic manipulation of the bacteria, which facilitate the identification of virulence factors involved in pathogenesis and the assessment of their potential values in the control and prevention of leptospirosis.
Insights
Leptospirosis is a global zoonotic disease causing mild to severe illness. Understanding Leptospira pathogenesis mechanisms is crucial for developing control strategies against this emerging public health threat.
Area of Science:
- Infectious Diseases
- Bacteriology
- Public Health
Background:
- Leptospirosis is the most widespread zoonosis globally, posing an emerging public health challenge, especially in urban areas of developing nations.
- Pathogenic Leptospira species cause diverse clinical outcomes, ranging from mild flu-like symptoms to severe, fatal multiorgan complications.
- The intricate mechanisms underlying Leptospira pathogenesis remain largely unelucidated.
Purpose of the Study:
- To review current animal models for studying acute and chronic leptospire infections.
- To discuss advancements in the genetic manipulation of Leptospira, aiding in virulence factor identification.
- To assess the potential of identified virulence factors in leptospirosis control and prevention.
Main Methods:
- Review of literature on animal models for leptospirosis.
- Analysis of recent developments in bacterial genetic manipulation techniques.
- Evaluation of identified virulence factors for their role in pathogenesis.
Main Results:
- Established animal models provide insights into acute and chronic Leptospira infections.
- Genetic manipulation tools are advancing the identification of key Leptospira virulence factors.
- Understanding these factors is essential for targeted prevention and control strategies.
Conclusions:
- Animal models and genetic tools are vital for unraveling Leptospira pathogenesis.
- Identification of virulence factors holds promise for novel leptospirosis interventions.
- Further research is needed to translate these findings into effective public health measures.
Related Concept Videos
01:30Bacterial Phylum Spirochaetes
01:31Defense Against Bacterial Pathogens
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
01:29Malaria
01:26Bacterial Meningitis II: Pathophysiology
01:20Determinants of Bacterial Pathogenicity and Virulence
01:25Colonisation of Pathogens