Pulmonary Infections
Pulmonary Infections - Related Videos
02:55
Aerosol Delivery of Mycobacterium tuberculosis for Pulmonary Infection in a Mouse Model
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2026
Source: Mueller, A., et al. An Experimental Model to Study Tuberculosis-Malaria Coinfection upon Natural Transmission of Mycobacterium tuberculosis and Plasmodium berghei. J. Vis. Exp. (2014)This video demonstrates the aerosol delivery of Mycobacterium tuberculosis (Mtb) to mice using a nebulizer-based chamber system to induce pulmonary infection, providing a controlled and reproducible model for studying airborne tuberculosis transmission and host-pathogen interactions in vivo.
03:14
Obtaining Cytotoxic Amyloids Following Bacterial Infection of Rat Pulmonary Endothelial Cells
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2025
Source: Balczon, R., et al. Methods for Detecting Cytotoxic Amyloids Following Infection of Pulmonary Endothelial Cells by Pseudomonas aeruginosa. J. Vis. Exp. (2018)This video demonstrates the procedure for generating cytotoxic supernatant from pulmonary endothelial cells following infection with Pseudomonas aeruginosa. It outlines how bacterial effector proteins disrupt host cell structure and induce the release of cytotoxic amyloid oligomers into the supernatant.
08:17
Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
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Cited by 8 •
2017
The following protocol describes the methodology for the acquisition and analysis of echocardiographic images used to obtain the Left Atrial Volume (LAV), Aorta (Ao) diameter, and Pulmonary Artery (PA) diameter in mice. This technique is a non-invasive, non-terminal procedure that allows assessment of the cardiopulmonary function.
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.
06:59
Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
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2025
Pulmonary vein stenosis (PVS) is a life-threatening complication of fibrosing mediastinitis (FM), with a poor prognosis if not properly treated. Currently, catheter-based endovascular angioplasty is a promising therapeutic strategy for FM-associated PVS. This protocol primarily outlines a stepwise approach to the transcatheter procedure for FM-associated PVS.
FAQs
The main biological injury in pulmonary infections often comes from interaction between pathogen growth and host inflammation. As immune cells are recruited to affected airways or lung tissue, inflammation can intensify local tissue injury and alter normal gas-exchange surfaces. This dual process matters because symptoms and impaired breathing may reflect both microbial activity and the body's attempt to contain it.
Inhalation and aspiration represent different routes by which microbes can reach the airways or lung tissue. Inhalation introduces microorganisms through breathed air, whereas aspiration carries material into the airways. The route is biologically important because it links pulmonary infections to transmission and exposure, while also helping frame questions about how pathogens entered the respiratory tract.
Fluid in alveoli disrupts oxygen exchange by occupying spaces that normally participate in transfer between air and the body. The resulting reduction in exchange can impair breathing even when the initiating microbe is no longer multiplying rapidly. Tracking this effect helps connect microscopic inflammation with observable respiratory dysfunction and with the tissue-recovery process after infection.
Host defense provides a framework for examining how the body responds after microbes reach the airways or lung tissue. Researchers can relate inflammatory-cell recruitment to containment, tissue injury, and recovery, rather than viewing infection only as pathogen presence. This perspective connects cellular events with changes in breathing and oxygen exchange.
Diagnosis combines three complementary forms of evidence: symptoms show how the illness is affecting the person, imaging provides a view of changes in the lungs, and microbiological analysis examines the infectious agent. Considering these sources together can support a more informed assessment than relying on one observation alone, helping guide treatment and infection-control measures.
Microbiological analysis is important when treatment must be linked to the microorganism involved. Its findings add biological evidence to the clinical picture created by symptoms and imaging, allowing diagnosis to guide treatment rather than treating respiratory impairment in isolation. In research, this approach also supports study of pathogen transmission and the relationship between microbes and host tissue injury.
Infection control addresses the transmission side of pulmonary infections, complementing diagnosis and treatment. Because microbes may be inhaled or aspirated, understanding how exposure occurs helps researchers and health professionals consider ways to limit spread. This makes infection control a biological application of transmission research, connecting knowledge of microbial movement with practical responses to disease.