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Viral Recombination00:57

Viral Recombination

Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
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...
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Infectious Diseases and Their Occurrence

Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...
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...
Poliomyelitis01:17

Poliomyelitis

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Investigation of Disease Outbreaks

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Nasal Wipes for Influenza A Virus Detection and Isolation from Swine
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Nasal Wipes for Influenza A Virus Detection and Isolation from Swine

Published on: December 4, 2015

Swine flu: a new emerging disease.

N Haque1, M S Bari, L Bilkis

  • 1Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh. naziacb4@gmail.com

Mymensingh Medical Journal : MMJ
|January 5, 2010
PubMed
Summary

Swine flu, a zoonotic disease caused by swine-origin influenza viruses, presents a global health challenge. This review explores its history, transmission, and diagnosis to aid in combating this pandemic disease.

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Published on: March 19, 2015

Area of Science:

  • Veterinary Medicine
  • Public Health
  • Virology

Background:

  • Swine flu is a significant zoonotic disease caused by swine-origin influenza viruses.
  • It is recognized as a global health problem due to increasing incidence and outbreaks.
  • The virus is a reassortment of influenza A virus subtype H1N1 strains, common in pig populations.

Purpose of the Study:

  • To critically review the history, classification, transmission, signs, symptoms, diagnosis, and prevention of swine flu.
  • To provide updated information on this pandemic disease.

Main Methods:

  • This paper presents a critical review of existing literature on swine flu.
  • It synthesizes information on the epidemiology and clinical aspects of the disease.

Main Results:

  • Swine influenza virus (SIV) transmission from pigs to humans is not frequent but can occur.
  • Clinical features vary, and under-reporting is common due to diagnostic challenges.
  • Early and specific diagnosis is crucial for favorable outcomes.

Conclusions:

  • Swine flu remains a significant public health concern requiring ongoing surveillance and research.
  • Understanding transmission dynamics and improving diagnostic capabilities are essential for control.
  • Comprehensive strategies for prevention and management are vital to mitigate the impact of swine flu pandemics.