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Related Concept Videos

Influenza01:27

Influenza

5
Influenza is an acute, highly communicable viral disease that affects the respiratory tract and is responsible for seasonal epidemics worldwide. Influenza A is the most prevalent type associated with widespread outbreaks and is subtyped based on two surface glycoproteins: hemagglutinin (H) and neuraminidase (N), as in H1N1. These glycoproteins are essential for viral infectivity, transmission, and immune recognition. Transmission occurs primarily through respiratory droplets and contaminated...
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Common Respiratory Disorders01:31

Common Respiratory Disorders

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Respiratory disorders, a prevalent health concern globally, are generally divided into two primary categories: upper and lower respiratory tract disorders. The categorization is based on the area of the respiratory system they affect.
Upper respiratory disorders impact the airways above the vocal cords, encompassing areas like the nose, sinuses, and throat. Various conditions fall under this category, including the common cold and allergic rhinitis. These disorders can stem from several causes,...
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Pneumonia V: Nursing management and Prevention01:30

Pneumonia V: Nursing management and Prevention

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Nursing management of pneumonia involves promoting airway patency, facilitating rest and conserving energy, encouraging fluid intake, maintaining nutrition, and educating patients.
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
Position the patient correctly to facilitate drainage of the affected lung segments. Manual or mechanical percussion and vibration can also be employed....
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Upper Respiratory Drugs: Decongestants01:27

Upper Respiratory Drugs: Decongestants

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Decongestants are a class of medications used primarily to alleviate nasal congestion, a common symptom resulting from allergies, colds, sinusitis, and other upper respiratory tract infections. These drugs work by activating α-adrenergic receptors, constricting small blood vessels in the nasal membranes. This action results in the opening of clogged nasal passages, thereby facilitating sinus drainage and relieving congestion.
Most decongestants are readily available over-the-counter in...
1.2K
Drugs Used in Upper Respiratory Disorders: Overview01:16

Drugs Used in Upper Respiratory Disorders: Overview

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Upper respiratory tract disorders, including viral infections and allergic rhinitis, cause significant discomfort and disrupt daily life. Managing these conditions involves a variety of drugs, such as antihistamines, intranasal steroids, decongestants, antitussives, expectorants, and mucolytics. Specific examples of drugs in each category are provided.
Antihistamines (e.g., Benadryl) block histamines from binding. Histamines are chemicals released during an allergic reaction in the body. As a...
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Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

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Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
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Related Experiment Video

Updated: Mar 19, 2026

An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
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Populations at Risk for Severe or Complicated Rhinovirus Illness: A Systematic Review and Meta-Analysis.

David Gou1,2, Jessica Bartoszko3, Laura Weiler4

  • 1Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.

Influenza and Other Respiratory Viruses
|March 18, 2026
PubMed
Summary

Individuals with comorbidities face a higher risk of severe rhinovirus illness. This research identifies key populations needing targeted therapies and clinical risk stratification for better outcomes.

Keywords:
meta‐analysisrespiratory tract infectionsrhinovirusrisksystematic review

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Area of Science:

  • Virology
  • Epidemiology
  • Public Health

Background:

  • Rhinovirus infections are common but can be severe in vulnerable populations.
  • Identifying at-risk groups is crucial for developing effective treatments and preventative strategies.
  • This study systematically reviews populations susceptible to severe or complicated rhinovirus illness.

Purpose of the Study:

  • To identify populations at increased risk for severe or complicated rhinovirus illness.
  • To inform clinical risk stratification and guide the development of targeted therapies.
  • To summarize existing evidence on risk factors for severe rhinovirus outcomes.

Main Methods:

  • Systematic review and meta-analysis of 29 observational studies (n=13,185).
  • Searched CENTRAL, EMBASE, and MEDLINE for risk factors of severe rhinovirus infection (LRTI, hospitalization, CCU admission, mechanical ventilation, death).
  • Pooled odds ratios using random-effects meta-analysis; assessed risk of bias and certainty of evidence.

Main Results:

  • High certainty: Age <1 year, premature birth not linked to LRTI risk; diabetes mellitus not linked to mortality.
  • Moderate certainty: Comorbidities (any, pulmonary) associated with increased LRTI risk.
  • Moderate certainty: Age >18 years, malignancy associated with increased mortality and CCU admission risk.

Conclusions:

  • Individuals with comorbidities are at higher risk for severe rhinovirus illness.
  • Findings support clinical risk stratification and targeted use of emerging therapies.
  • Further research is needed to identify additional risk factors and strengthen evidence.