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Related Concept Videos

Introduction to Epidemiology01:26

Introduction to Epidemiology

Epidemiology, known as the cornerstone of public health, involves studying the distribution and determinants of health-related events in defined populations and applying these insights to control health issues. This is essential for understanding how diseases spread, identifying populations at greater risk, and implementing measures to control or prevent outbreaks. Epidemiology addresses not only infectious diseases but also non-communicable conditions like cancer and cardiovascular disease,...
Steps in Outbreak Investigation01:18

Steps in Outbreak Investigation

In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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...
Investigation of Disease Outbreaks01:23

Investigation of Disease Outbreaks

Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...
Bacterial Gastroenteritis01:18

Bacterial Gastroenteritis

Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...

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Related Experiment Video

Updated: May 23, 2026

Detection and Genogrouping of Noroviruses from Children's Stools By Taqman One-step RT-PCR
15:16

Detection and Genogrouping of Noroviruses from Children's Stools By Taqman One-step RT-PCR

Published on: July 22, 2012

Progress in understanding norovirus epidemiology.

Marion Koopmans1

  • 1Public Health Virology, ErasmusMC, Rotterdam and Virology, Laboratory for Infectious Diseases and Screening, National Institute of Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, Bilthoven, The Netherlands. marion.koopmans@rivm.nl

Current Opinion in Infectious Diseases
|August 30, 2008
PubMed
Summary

Noroviruses are a significant cause of childhood gastroenteritis globally, with their impact underestimated. Understanding virus evolution and host susceptibility is key to developing effective control strategies.

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Quantifying Human Norovirus Virus-like Particles Binding to Commensal Bacteria Using Flow Cytometry

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Related Experiment Videos

Last Updated: May 23, 2026

Detection and Genogrouping of Noroviruses from Children's Stools By Taqman One-step RT-PCR
15:16

Detection and Genogrouping of Noroviruses from Children's Stools By Taqman One-step RT-PCR

Published on: July 22, 2012

Swab Sampling Method for the Detection of Human Norovirus on Surfaces
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Swab Sampling Method for the Detection of Human Norovirus on Surfaces

Published on: February 6, 2017

Quantifying Human Norovirus Virus-like Particles Binding to Commensal Bacteria Using Flow Cytometry
07:02

Quantifying Human Norovirus Virus-like Particles Binding to Commensal Bacteria Using Flow Cytometry

Published on: April 29, 2020

Area of Science:

  • Virology
  • Epidemiology
  • Public Health

Background:

  • Noroviruses are increasingly recognized as a major cause of illness, with recent changes in their incidence and impact.
  • Understanding norovirus transmission, pathogenesis, evolution, and control is crucial for public health.

Purpose of the Study:

  • To review recent studies providing new knowledge on norovirus transmission, pathogenesis, evolutionary changes, and control options.
  • To highlight the evolving understanding of norovirus epidemiology and clinical significance.

Main Methods:

  • Comprehensive review of recent scientific literature on noroviruses.
  • Analysis of studies focusing on transmission dynamics, viral evolution, and host-pathogen interactions.
  • Evaluation of data from global surveillance and clinical impact assessments.

Main Results:

  • Noroviruses are a leading cause of gastroenteritis hospitalizations in children worldwide, comparable to rotaviruses.
  • The diversity of noroviruses is expanding, with new related viruses identified in animal species; zoonotic transmission is rare, but genetic reassortment is plausible.
  • The GII4 norovirus strains dominate outbreak surveillance, driven by specific evolutionary mechanisms; developing countries show broader viral diversity.

Conclusions:

  • Norovirus success results from complex interactions between viral evolution and host genetic/immunological factors.
  • The global impact of noroviruses, particularly in children, has been underestimated and requires serious attention.
  • There is an urgent need for evidence-based prevention and intervention strategies to control norovirus infections.