Related Experiment Video
Updated: Jun 18, 2026

09:29
Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds
Published on: October 29, 2015
Viral infections: new and emerging.
Muhammad A Khan1, Dorsey M Bass
1Division of Pediatric Gastroenterology, Department of Pediatrics, Stanford University, Palo Alto, California, USA.
Current Opinion in Gastroenterology
|November 13, 2009
Summary
Viral gastroenteritis is a major cause of childhood mortality globally. Advances in molecular diagnostics and rotavirus vaccination are improving disease recognition, prevention, and treatment strategies.
Area of Science:
- Pediatrics
- Infectious Diseases
- Gastroenterology
Background:
- Viral gastrointestinal diseases are a significant cause of mortality in children worldwide.
- Understanding the epidemiology, pathogenesis, treatment, and prevention of these diseases is crucial for clinicians.
- Recent scientific advances enhance the comprehension of viral gastroenteritis.
Purpose of the Study:
- To review recent advances in the understanding of common causes of viral gastroenteritis.
- To summarize current knowledge on epidemiology, pathogenesis, treatment, and prevention.
- To highlight the impact of scientific progress on clinical practice.
Main Methods:
- Review of current scientific literature on viral gastroenteritis.
- Analysis of epidemiological data and disease burden.
- Evaluation of diagnostic and therapeutic advancements.
Main Results:
- Rotavirus vaccination has notably reduced disease burden in many areas.
- Molecular testing advancements improve viral detection capabilities, though primarily for research.
- Associations between viruses and other gastrointestinal conditions, along with host susceptibility factors, have been investigated.
Conclusions:
- Viral gastroenteritis is prevalent, and identifying specific causative viruses remains challenging.
- Advanced diagnostic tools like PCR and electron microscopy are valuable research methods.
- Recognizing host risk factors, epidemiological patterns, and transmission is key for prevention and treatment strategies.
More Related Videos
Related Concept Videos
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.
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...
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...
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...
Human Virome
The human body harbors a vast and diverse viral community known as the human virome. The virome includes bacteriophages that infect bacteria, and eukaryotic viruses that infect human cells. Transient dietary and environmental viruses also contribute to this dynamic ecosystem. Estimates suggest the human body may contain on the order of 10¹³ viral particles, though abundance varies widely by body site and detection method.Comprehensive characterization of the virome has become possible only with...
Subviral Agents
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...

