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Related Concept Videos

Influenza01:27

Influenza

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...
Vaccinations01:51

Vaccinations

Overview
Inhibitors Of Virion Release01:25

Inhibitors Of Virion Release

Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
Respiratory Syncytial Virus Disease01:29

Respiratory Syncytial Virus Disease

Human respiratory syncytial virus (RSV) is a widespread pathogen that primarily targets infants and young children but also poses a serious health risk to elderly and immunocompromised individuals. Belonging to the Pneumoviridae family, RSV is a negative-sense, single-stranded RNA virus within the Pneumovirus genus. Its global health burden is significant, with millions of cases annually resulting in hospitalizations and mortality, particularly in resource-limited settings. Although most...
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...

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Related Experiment Video

Updated: Jun 7, 2026

A Luciferase-fluorescent Reporter Influenza Virus for Live Imaging and Quantification of Viral Infection
05:21

A Luciferase-fluorescent Reporter Influenza Virus for Live Imaging and Quantification of Viral Infection

Published on: August 14, 2019

Influenza.

Rebecca C Brady1

  • 1Division of Pediatric Infectious Diseases, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229, USA. rebecca.brady@cchmc.org

Adolescent Medicine: State of the Art Reviews
|November 5, 2010
PubMed
Summary
This summary is machine-generated.

Influenza causes significant global health issues, including annual epidemics and past pandemics. Vaccination remains the most effective strategy for controlling seasonal and novel influenza strains like H1N1.

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Use of an Influenza Antigen Microarray to Measure the Breadth of Serum Antibodies Across Virus Subtypes
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Area of Science:

  • Epidemiology
  • Virology
  • Public Health

Background:

  • Influenza poses a significant global public health threat, highlighted by the 2009 H1N1 pandemic.
  • Annual influenza epidemics cause substantial morbidity, particularly in children and adolescents, and severe illness in those with chronic conditions.

Purpose of the Study:

  • To review the epidemiology, clinical manifestations, diagnosis, and management of influenza.
  • To discuss vaccination strategies for seasonal and pandemic influenza, including the 2009 H1N1 strain.

Main Methods:

  • Literature review of influenza epidemiology.
  • Analysis of clinical presentations and diagnostic approaches.
  • Evaluation of current influenza vaccination recommendations.

Main Results:

  • Influenza epidemics are recurrent and impact healthy populations, especially children and adolescents.
  • Individuals with chronic conditions face higher risks of severe influenza illness.
  • Vaccination is identified as the primary control measure against influenza.

Conclusions:

  • Effective management of influenza requires understanding its epidemiology and clinical spectrum.
  • Vaccination strategies, including inactivated and live attenuated vaccines, are crucial for controlling seasonal and pandemic influenza.
  • Recommendations for vaccine use against seasonal and novel H1N1 influenza viruses are essential for public health protection.