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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...
Viral Mutations00:36

Viral Mutations

A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material for adaptive...
Vaccinations01:51

Vaccinations

Overview
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.
Lethal Alleles02:41

Lethal Alleles

Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Infectious Diseases and Their Occurrence01:28

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...

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Is H5N1 really highly lethal?

Eric S Toner1, Amesh A Adalja

  • 1Center for Biosecurity of UPMC, 621 E. Pratt St., Ste. 210, Baltimore, MD 21202, USA.

Biosecurity and Bioterrorism : Biodefense Strategy, Practice, and Science
|March 8, 2012
PubMed
Summary
This summary is machine-generated.

This column explains clinical issues and their biosecurity implications for policymakers. It simplifies complex medical topics for non-medical audiences, enhancing understanding of healthcare challenges.

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Area of Science:

  • Public Health
  • Biosecurity
  • Healthcare Policy

Background:

  • The

Purpose of the Study:

  • To provide policymakers with accessible explanations of clinical issues relevant to biosecurity.
  • To bridge the knowledge gap between medical practices and policy decisions.

Main Methods:

  • Articles in "Medicine for Policymakers" explain hospital practices and medical challenges.
  • Content is tailored for a nonmedical audience, ensuring clarity and understanding.

Main Results:

  • The column aims to inform decision-makers on the biosecurity implications of healthcare topics.
  • It covers a range of subjects including hospital operations and medical challenges.

Conclusions:

  • "Medicine for Policymakers" serves as a vital resource for informed biosecurity and healthcare policy.
  • The column encourages reader engagement by soliciting topic ideas for future articles.