Respiratory Infection
Respiratory Infection - Related Videos
07:16
Rapid Point-of-Care Detection of Pathogens for Lower Respiratory Tract Infections in ICU Patients
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2026
This protocol describes a fully integrated microfluidic chip-based LAMP method enabling point-of-care detection of 15 pathogens causing lower respiratory tract infections in ICU patients within one hour.
07:36
Contact-Free Co-Culture Model for the Study of Innate Immune Cell Activation During Respiratory Virus Infection
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Cited by 1 •
2021
This protocol details an investigation of the early interactions between virally infected nasal epithelial cells and innate cell activation. Individual subsets of immune cells can be distinguished based on their activation in response to viral infections. They can then be further investigated to determine their effects on early antiviral responses.
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.
09:59
Respiratory Exam I: Inspection and Palpation
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2023
Source: Suneel Dhand, MD, Attending Physician, Internal Medicine, Beth Israel Deaconess Medical Center Disorders of the respiratory system with a chief complaint of shortness of breath are among the most common reasons for both outpatient and inpatient evaluation. The most obvious visible clue to a respiratory problem will be whether the patient is displaying any signs of respiratory distress, such as fast respiratory rate and/or cyanosis. In a clinical situation, this will always require...
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 14 •
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.
FAQs
After entering respiratory tissues, pathogens attach to cells lining the tract and stimulate local inflammation. The resulting immune response can increase mucus production and irritate affected tissues, producing symptoms such as coughing and fever. If inflammation extends into the lungs or other lower respiratory structures, breathing difficulty may occur and the risk of complications such as pneumonia becomes clinically important.
The anatomical location of infection helps clinicians interpret symptoms, examination findings, and potential severity. Upper respiratory involvement affects areas such as the nose and throat, whereas lower respiratory involvement includes the airways or lungs. This distinction supports decisions about whether further evaluation, imaging, or laboratory testing may be needed and helps identify patients at risk for more serious complications.
Identifying whether a virus or bacterium is more likely to be responsible helps guide antimicrobial decisions. Because accurate diagnosis supports appropriate antimicrobial use, clinicians combine the patient’s history and physical examination with laboratory testing or imaging when indicated. This approach can reduce inappropriate treatment while directing attention toward monitoring for progression or complications.
Clinical evaluation begins with the patient’s history and a physical examination, including attention to respiratory symptoms and the apparent location of illness. Depending on the findings, clinicians may add laboratory testing or imaging. These assessments help distinguish upper from lower respiratory involvement, support diagnostic decisions, guide treatment, and identify possible progression toward complications such as pneumonia.
Imaging and laboratory testing are useful when history and physical examination alone do not adequately clarify the illness or its extent. They can provide additional information for distinguishing upper from lower respiratory involvement and for guiding treatment. Their clinical value lies in supporting accurate diagnosis, which helps clinicians select appropriate antimicrobial strategies and recognize conditions requiring closer attention.
Understanding transmission through respiratory droplets, aerosols, or contaminated surfaces informs infection-control measures designed to limit spread. The same clinical knowledge supports vaccination strategies and helps identify situations in which preventing complications is important. Together, diagnosis, infection control, and vaccination address both the individual patient’s risk and the broader clinical burden of respiratory infections.