Norwalk-like viruses: Introduction
Common names of the illness caused by the Norwalk and Norwalk-like viruses are viral gastroenteritis, acute nonbacterial gastroenteritis, food poisoning ... more about Norwalk-like viruses.
Norwalk-like viruses: Several shellfish or oyster-associated gastro-causing viruses related to Norwalk or caliciviruses.
More detailed information about the symptoms,
causes, and treatments of Norwalk-like viruses is available below.
Symptoms of Norwalk-like viruses
See full list of 6
symptoms of Norwalk-like viruses
Home Diagnostic Testing
Home medical testing related to Norwalk-like viruses:
- Child Behavior: Home Testing
- Child General Health: Home Testing
Wrongly Diagnosed with Norwalk-like viruses?
Norwalk-like viruses: Complications
Read more about complications of Norwalk-like viruses.
Causes of Norwalk-like viruses
Read more about causes of Norwalk-like viruses.
Disease Topics Related To Norwalk-like viruses
Research the causes of these diseases that are similar to, or related to, Norwalk-like viruses:
Norwalk-like viruses: Undiagnosed Conditions
Commonly undiagnosed diseases in related medical categories:
Misdiagnosis and Norwalk-like viruses
Mild worm infections undiagnosed in children: Human worm infestations, esp. threadworm, can be overlooked in some cases,
because it may cause only mild or even absent symptoms.
Although the most...read more »
Chronic digestive conditions often misdiagnosed: When diagnosing chronic symptoms
of the digestive tract, there are a variety of conditions that may be misdiagnosed.
The best known, irritable bowel syndrome, is over-diagnosed,...read more »
Intestinal bacteria disorder may be hidden cause: One of the lesser known causes of diarrhea
is an imbalance of bacterial in the gut, sometimes called intestinal imbalance.
The digestive system...read more »
Antibiotics often causes diarrhea: The use of antibiotics are very likely
to cause some level of diarrhea in patients.
The reason is that antibiotics kill off not only "bad" bacteria,
but can also kill...read more »
Food poisoning may actually be an infectious disease: Many people who come down
with "stomach symptoms" like diarrhea assume that it's "something I ate" (i.e. food poisoning).
In fact, it's more...read more »
Mesenteric adenitis misdiagnosed as appendicitis in children: Because appendicitis is one of the
more feared conditions for a child with abdominal...read more »
Blood pressure cuffs misdiagnose hypertension in children: One known misdiagnosis issue
with hyperension, arises in relation to the simple equipment...read more »
Celiac disease often fails to be diagnosed cause of chronic digestive symptoms: One of the most common chronic digestive
conditions is celiac disease, a malabsorption disorder with a variety of symptoms (see symptoms...read more »
Children with migraine often misdiagnosed: A migraine often fails to be
correctly diagnosed in pediatric patients.
These patients are not the typical migraine sufferers, but migraines can also occur in children.
See ...read more »
Chronic digestive diseases hard to diagnose: There is an inherent
difficulty in diagnosing the various types of chronic digestive diseases.
Some of the...read more »
Read more about Misdiagnosis and Norwalk-like viruses
Norwalk-like viruses: Research Doctors & Specialists
Research related physicians and medical specialists:
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Hospitals & Clinics: Norwalk-like viruses
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for medical facilities in specialties related to Norwalk-like viruses:
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More general information, not necessarily in relation to Norwalk-like viruses,
on hospital performance and surgical care quality:
Norwalk-like viruses: Rare Types
Rare types of diseases and disorders in related medical categories:
Evidence Based Medicine Research for Norwalk-like viruses
Medical research articles related to Norwalk-like viruses include:
Click here to find more evidence-based articles on the TRIP Database
Norwalk-like viruses: Animations
More Norwalk-like viruses animations & videos
Prognosis for Norwalk-like viruses
Prognosis for Norwalk-like viruses:
Usually recovery within 2-3 days
More about prognosis of Norwalk-like viruses
Research about Norwalk-like viruses
Visit our research pages for current research about Norwalk-like viruses treatments.
Statistics for Norwalk-like viruses
Norwalk-like viruses: Broader Related Topics
Types of Norwalk-like viruses
Norwalk-like viruses Message Boards
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Article Excerpts about Norwalk-like viruses
FDA Bad Bug Book (Excerpt)
Common names of the illness caused by the Norwalk and Norwalk-like viruses are viral gastroenteritis, acute nonbacterial gastroenteritis, food poisoning, and food infection.
Norwalk virus is the prototype of a family of unclassified small round structured viruses (SRSVs) which may be related to the caliciviruses. They contain a positive strand RNA genome of 7.5 kb and a single structural protein of about 60 kDa. The 27-32 nm viral particles have a buoyant density of 1.39-1.40 g/ml in CsCl. The family consists of several serologically distinct groups of viruses that have been named after the places where the outbreaks occurred. In the U.S., the Norwalk and Montgomery County agents are serologically related but distinct from the Hawaii and Snow Mountain agents. The Taunton, Moorcroft, Barnett, and Amulree agents were identified in the U.K., and the Sapporo and Otofuke agents in Japan. Their serological relationships remain to be determined.
(Source: FDA Bad Bug Book)
FDA Bad Bug Book (Excerpt)
Caliciviruses are classified in the family Caliciviridae. They contain a single strand of RNA surrounded by a protein capsid of 31-40 nm diameter. Mature virions have cup-shaped indentations which give them a 'Star of David' appearance in the electron microscope. The particle contain a single major coat protein of 60 kDa and have a buoyant density in CsCl of 1.36 - 1.39 g/ml. Four serotypes have been identified in England.
(Source: FDA Bad Bug Book)
Foodborne Infections General: DBMD (Excerpt)
or Norwalk-like virus is an extremely common cause of foodborne
illness, though it is rarely diagnosed, because the laboratory
test is not widely available. It causes an acute gastrointestinal
illness, usually with more vomiting than diarrhea, that resolves
within two days. (Source: excerpt from Foodborne Infections General: DBMD)
Facts About Norwalk-like Viruses: CDC-OC (Excerpt)
Norwalk viruses (and related caliciviruses) are important causes of
sporadic and epidemic gastrointestinal disease in the United States. An
estimated 181,000 cases occur annually.
(Source: excerpt from Facts About Norwalk-like Viruses: CDC-OC)
Definitions of Norwalk-like viruses:
Type species in the genus Norovirus; the virions are non-enveloped spherical particles containing a single protein; multiple strains are named after the places where outbreaks have occurred.
- (Source - Diseases Database)
Contents for Norwalk-like viruses:
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