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Related Concept Videos

Influenza01:27

Influenza

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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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Immune Response Against Viral Pathogens01:29

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The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
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Introduction to Innate and Adaptive Immunity01:21

Introduction to Innate and Adaptive Immunity

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The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
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Leaky Scanning

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During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
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Modeling Dysplastic and Functional Lung Alveolar Repair after Influenza Infection
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[Immune system and influenza virus].

Anna Wierzbicka-Woś1, Beata Tokarz-Deptuła2, Wiesław Deptuła1

  • 1Katedra Mikrobiologii, Wydział Biologii, Uniwersytet Szczeciński.

Postepy Higieny I Medycyny Doswiadczalnej (Online)
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Summary

Influenza viruses cause millions of infections and deaths annually. Vaccination remains the most effective strategy to combat influenza by activating the immune system and limiting viral spread.

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Area of Science:

  • Immunology
  • Virology
  • Infectious Diseases

Background:

  • Influenza viruses are a major cause of global respiratory illness and mortality.
  • Host immune responses, both innate and adaptive, are crucial for controlling influenza virus replication.
  • Immunological memory provides protection against reinfection, but complete viral elimination remains a challenge.

Purpose of the Study:

  • To detail the immune reactions to influenza virus infection.
  • To elucidate influenza virus mechanisms for evading immune responses.
  • To review vaccine strategies for stimulating immunity against influenza.

Main Methods:

  • Review of host immune responses (innate and adaptive) to influenza.
  • Analysis of viral immune evasion strategies.
  • Evaluation of different vaccine generations and their efficacy.

Main Results:

  • Influenza infection triggers complex immune responses limiting viral replication and inducing memory.
  • Influenza viruses exhibit high molecular variability, enabling immune evasion.
  • Vaccination effectively stimulates immune responses, mitigating influenza spread.

Conclusions:

  • Understanding influenza-induced immunity and viral evasion is key to developing better control strategies.
  • Vaccination is the primary method for preventing severe influenza outcomes.
  • Ongoing research into influenza vaccines aims to improve protection against this highly variable pathogen.