Related Experiment Video
Updated: May 19, 2026

15:16
Detection and Genogrouping of Noroviruses from Children's Stools By Taqman One-step RT-PCR
Published on: July 22, 2012
[Norovirus gastroenteritis in adult]
1Department of Infectious Disease, Sendai City Hospital.
Nihon Rinsho. Japanese Journal of Clinical Medicine
|August 17, 2012
Summary
Noroviruses cause widespread gastroenteritis outbreaks. A virus-like particle vaccine shows promise for protection against norovirus infection.
Area of Science:
- Microbiology
- Virology
- Epidemiology
Context:
- Noroviruses are a leading cause of epidemic and sporadic acute gastroenteritis globally.
- Significant genetic diversity exists within noroviruses, categorized into genogroups and genotypes.
- Illness onset is abrupt, characterized by vomiting, diarrhea, and sometimes fever.
Purpose:
- To summarize the epidemiology, clinical features, diagnostic challenges, and potential vaccine strategies for norovirus infections.
- To highlight the public health significance of norovirus outbreaks.
- To discuss the current limitations in diagnosis and control.
Summary:
- Noroviruses cause acute gastroenteritis with high secondary attack rates and low infectious doses, posing control challenges.
- Diagnosis relies on RT-PCR, though not yet standard in clinical practice.
- Norovirus virus-like particle vaccines are being investigated for their potential to confer protection.
Impact:
- Understanding norovirus diversity and transmission is crucial for effective outbreak control.
- Development of vaccines is a key strategy to mitigate the impact of norovirus infections.
- Improved diagnostic methods and public health interventions are needed to manage norovirus outbreaks effectively.
Related Concept Videos
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...
Gastritis III: Clinical Manifestations and Management
The clinical manifestations of gastritis can vary depending on the cause and type of gastritis, but some common symptoms may include the following.
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
Peptic Ulcer Disease III: Clinical Manifestations and Complications
Duodenal UlcersDuodenal ulcers are the most common form of peptic ulcer disease, presenting with chronic, intermittent epigastric pain. Pain typically appears 2–3 hours after meals, especially when the stomach is empty, often waking patients at night. It is characteristically relieved by food or antacids (“pain–food–relief”). Some patients remain asymptomatic until complications like bleeding or perforation emerge, particularly with NSAID or anticoagulant use.Gastric UlcersGastric ulcers share...
Assessment of the Gastrointestinal System I: Subjective Data
Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health History
The initial step in assessing the GI system is obtaining a comprehensive health history. This includes inquiring about the patient's history or presence of problems related to...
Health History
The initial step in assessing the GI system is obtaining a comprehensive health history. This includes inquiring about the patient's history or presence of problems related to...
Other Disorders of Digestive System
The gastrointestinal tract is susceptible to various disorders. If the lower esophageal sphincter is damaged, stomach acid can flow back into the esophagus, causing irritation and inflammation of the lining. This condition is called gastroesophageal reflux disease (known as heartburn) and may cause chest pain and difficulty swallowing. In the stomach, prolonged use of nonsteroidal anti-inflammatory drugs like aspirin, chronic alcohol consumption, bacterial infections such as Helicobacter...
Gastrointestinal Motility Disorders
Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...

