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Related Concept Videos

Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
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The Uncertainty Principle04:08

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Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
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Diploid organisms have two alleles of each gene, one from each parent, in their somatic cells. Therefore, each individual contributes two alleles to the gene pool of the population. The gene pool of a population is the sum of every allele of all genes within that population and has some degree of variation. Genetic variation is typically expressed as a relative frequency, which is the percentage of the total population that has a given allele, genotype or phenotype.
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The Aufbau Principle and Hund's Rule03:02

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To determine the electron configuration for any particular atom, we can build the structures in the order of atomic numbers. Beginning with hydrogen, and continuing across the periods of the periodic table, we add one proton at a time to the nucleus and one electron to the proper subshell until we have described the electron configurations of all the elements. This procedure is called the aufbau principle, from the German word aufbau (“to build up”). Each added electron occupies the...
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Immune Surveillance by NK Cells and Phagocytes01:25

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Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
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Standard Operating Procedure for Lyssavirus Surveillance of the Bat Population in Taiwan
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Screening and surveillance-principles and practice.

Robert Jc Steele1

  • 1University of Dundee, Chair, UK National Screening Committee , Dundee , UK.

The British Journal of Radiology
|March 29, 2018
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This summary is machine-generated.

Health screening applies to populations, requiring accurate tests, treatable diseases, and proven benefits over harm. Surveillance targets high-risk individuals. Both need informed consent regarding benefits and risks.

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Area of Science:

  • Public health
  • Preventive medicine
  • Health policy

Background:

  • Health screening programs aim to detect diseases early in populations.
  • Effective screening necessitates acceptable, accurate tests and early treatable conditions.
  • Screening benefits must outweigh associated harms and costs.

Purpose of the Study:

  • To differentiate between population-based health screening and individual-focused surveillance.
  • To outline criteria for the effective implementation of health screening.
  • To emphasize the importance of informed consent in both screening and surveillance.

Main Methods:

  • Literature review on health screening and surveillance principles.
  • Analysis of criteria for effective population health screening.
  • Distinction between screening (population-based) and surveillance (high-risk individuals).

Main Results:

  • Health screening is population-based; surveillance targets high-risk individuals.
  • Key requirements for effective screening include test accuracy, treatability, and favorable benefit-harm ratio.
  • Evidence is crucial before implementing systematic screening.

Conclusions:

  • Screening and surveillance are distinct but both require clear communication of risks and benefits.
  • Informed decision-making is paramount for participants in health testing programs.
  • Robust evidence underpins the ethical and effective application of health screening.