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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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[Ebola virus disease: Update].

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The 2014 West Africa Ebola outbreak was the largest in history, prompting global alarm and significant advances in understanding and treating Ebola virus disease. This review covers key developments in epidemiology, clinical presentation, and experimental treatments.

Keywords:
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Area of Science:

  • Epidemiology
  • Virology
  • Infectious Diseases

Background:

  • The 1976 Ebola outbreak marked the first known instance of the disease.
  • Previous outbreaks were limited, affecting no more than 425 individuals.
  • The 2014 West Africa epidemic became the largest recorded Ebola outbreak, causing widespread concern.

Purpose of the Study:

  • To review advances in knowledge regarding Ebola virus disease.
  • To highlight the unprecedented scale of the 2014 West Africa outbreak.
  • To discuss the expansion of understanding in epidemiology, clinical features, and virology.

Main Methods:

  • Literature review of Ebola virus disease.
  • Analysis of epidemiological data from past and current outbreaks.
  • Summary of advancements in clinical and laboratory findings.

Main Results:

  • The 2014 West Africa outbreak reported 28,220 cases and 11,291 deaths.
  • Ebola virus disease knowledge expanded significantly during the current epidemic.
  • Experimental treatments and vaccine development saw major progress.

Conclusions:

  • The scale of the 2014 outbreak necessitated global response and knowledge expansion.
  • Advances in understanding Ebola virus disease have been substantial.
  • New therapeutic and preventative strategies are emerging.