Respiratory Infection Model
Respiratory Infection Model - Related Videos
09:01
An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
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Cited by 15 •
2013
Human respiratory syncytial virus (HRSV) can cause severe bronchiolitis in young infants. Part of the pathogenesis of severe HRSV disease is caused by the host immune response. Stimulation of primary human immune cells with HRSV provides a fast and reproducible model system to study activation of inflammatory pathways and infection.
06:22
Machine Learning-Based Cough Tone Classification: Diagnostic Exploration of Chronic Obstructive Pulmonary Disease and Respiratory Tract Infections
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2025
This study effectively accomplished the automated classification of two distinct categories by acquiring cough sound data from patients diagnosed with chronic obstructive pulmonary disease (COPD) and respiratory tract infections (RTI), utilizing an integration of speech signal processing techniques and machine learning algorithms.
03:16
Processing of Infected Tissues for Bacterial Enumeration in a Mouse Co-Infection Model
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2026
Source: Lenhard, A., et al. A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness. J. Vis. Exp. (2022)This video demonstrates the processing of lungs from a mouse co-infected with a pathogenic bacterium and a virus. Mincing, homogenizing, and plating the lung tissue allows quantification of bacterial load, indicating bacterial spread to the lungs and disease severity.
12:30
Use of Galleria mellonella as a Model Organism to Study Legionella pneumophila Infection
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Cited by 108 •
2013
The larva of the wax moth Galleria mellonella was recently established as an in vivo model to study Legionella pneumophila infection. Here, we demonstrate fundamental techniques to characterize the pathogenesis of Legionella in the larvae, including inoculation, measurement of bacterial virulence and replication as well as extraction and analysis of infected hemocytes.
03:17
A Mouse Model to Study the Pathogenic Transition of Streptococcus pneumoniae Following Viral Co-Infection
0 Views •
2026
Source: Lenhard, A. et al. A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness. J. Vis. Exp. (2022)This video demonstrates a mouse co-infection model in which the influenza virus triggers the transition of Streptococcus pneumoniae from a colonizer to a pathogen. It outlines the steps involved in bacterial colonization, viral infection, and disease progression.
FAQs
Pathogen entry and replication provide the initiating events that allow researchers to examine how airway epithelial cells respond to infection. These responses include innate immune signaling and release of inflammatory mediators, which can then be studied alongside the development of adaptive immunity. Comparing these stages helps clarify how host responses relate to infection progression and disease severity.
Each model type captures different aspects of human respiratory disease. Cultured airway cells can support controlled studies of host tissue responses, whereas organoids or animal hosts may represent additional features of infection in a more complex biological setting. Selecting among them determines which pathogen-host interactions, immune responses, or disease-related outcomes can be examined most effectively.
Researchers can compare pathogen entry and replication, epithelial responses, innate immune signaling, inflammatory mediator release, and adaptive immune activity across model systems. Such comparisons reveal whether a finding depends on a particular host tissue or experimental design. They also help identify which features are consistently associated with pathogen virulence or with differences in disease severity.
Respiratory infection models allow investigators to examine mechanisms that influence how strongly infection affects host tissues and how infection-related features may relate to transmission. By controlling the pathogen and host system, researchers can compare responses across conditions and models. The resulting comparisons support investigation of why some infections produce different levels of severity or transmission-related behavior.
A typical design begins by selecting a controlled system that matches the research question, such as cultured airway cells, an organoid, an animal host, or another suitable setup. Researchers then introduce the pathogen and examine outcomes such as entry, replication, epithelial responses, immune signaling, inflammatory mediator release, or adaptive immunity. The model should reflect the feature being investigated.
These models are useful when researchers need to evaluate how a vaccine or therapeutic affects pathogen infection and host responses. The selected system can support comparisons of infection-related outcomes, immune activity, and mechanisms associated with disease severity. Because models differ in what they reproduce, the experimental system must be matched to the intervention and the outcome of interest.
Researchers can expose comparable model systems to different pathogens or pathogen conditions and assess differences in entry, replication, epithelial responses, inflammatory mediator release, and immune activation. These observations provide a basis for comparing virulence, meaning the capacity to produce differing effects in the host. Model selection remains important because each system represents only certain aspects of human disease.