Related Experiment Video
Updated: Jun 16, 2026
12:30
Use of Galleria mellonella as a Model Organism to Study Legionella pneumophila Infection
Published on: November 22, 2013
Update on Legionnaires' disease: pathogenesis, epidemiology, detection and control
Hubert Hilbi1, Sophie Jarraud, Elizabeth Hartland
1Institute of Molecular Life Sciences, University of Zürich, Zürich, Switzerland.
Molecular Microbiology
|February 13, 2010
Summary
Legionnaires' disease, a severe pneumonia, affects the elderly and immunocompromised. Advances in Legionella genomics and pathogen-host interaction research are paving the way for new treatments and prevention strategies.
Area of Science:
- Microbiology
- Infectious Diseases
- Genomics
Background:
- Legionellosis, or Legionnaires' disease, is a severe pneumonia with increasing risk in elderly and immunocompromised populations.
- Genomic studies of Legionella species have enhanced understanding of disease pathogenesis and Legionella-host interactions.
Framework:
- The 7th International Conference on Legionella (Legionella 2009) highlighted advances in epidemiology, pathogenesis, and ecology.
- Experts presented findings on pathogen-host interaction mechanisms, bacterial evolution, and Legionella's environmental persistence.
Implementation:
- Research revealed insights into the genetic and metabolic underpinnings of Legionella's intracellular lifestyle.
- Studies demonstrated Legionella's capacity to manipulate host cell processes through molecular mimicry.
Implications:
- These investigations are crucial for developing novel therapeutic and prophylactic strategies against Legionnaires' disease.
- Enhanced knowledge of Legionella pathogenesis and host manipulation will inform future clinical management and public health interventions.
Related Concept Videos
01:23Investigation of Disease Outbreaks
Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...
01:14Atypical Pneumonia
Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
01:20Infection
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
01:23Tuberculosis
Tuberculosis (TB) remains a significant global health concern, primarily targeting the lungs and spreading through airborne transmission. Infection begins when aerosolized droplet nuclei, expelled by an individual with active TB, are inhaled by another person. These microscopic particles carry Mycobacterium tuberculosis, the causative agent of TB. Upon reaching the alveoli, the bacilli are engulfed by alveolar macrophages. However, due to their specialized lipid-rich cell wall, these pathogens...
01:18Steps in Outbreak Investigation
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
01:30Reservoir of Infection
Infectious diseases arise from intricate interactions between pathogens and their reservoirs. A reservoir of infection refers to the natural habitat where a pathogen lives, grows, and multiplies, serving as a continual source of infection. Reservoirs are broadly classified as either living or nonliving, and each plays a unique role in disease transmission, significantly influencing public health interventions and control strategies.Humans act as reservoirs for a wide array of pathogens,...