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Related Concept Videos

Respiratory Syncytial Virus Disease01:29

Respiratory Syncytial Virus Disease

Human respiratory syncytial virus (RSV) is a widespread pathogen that primarily targets infants and young children but also poses a serious health risk to elderly and immunocompromised individuals. Belonging to the Pneumoviridae family, RSV is a negative-sense, single-stranded RNA virus within the Pneumovirus genus. Its global health burden is significant, with millions of cases annually resulting in hospitalizations and mortality, particularly in resource-limited settings. Although most...
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Poliomyelitis

Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...
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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...
Vaccines01:21

Vaccines

Vaccines are among the most effective tools in preventive medicine, designed to prepare the immune system to recognize and combat infectious agents. By introducing antigens—substances that the immune system identifies as foreign—vaccines stimulate an adaptive immune response that leads to immunological memory. This immunological memory enables the body to mount a faster and more effective response upon future exposures to the actual pathogen.Vaccines can be categorized based on the type of...
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Size and Structure of Viral Genomes01:26

Size and Structure of Viral Genomes

Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...

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Related Experiment Video

Updated: Jun 27, 2026

Simplified Reverse Genetics Method to Recover Recombinant Rotaviruses Expressing Reporter Proteins
11:40

Simplified Reverse Genetics Method to Recover Recombinant Rotaviruses Expressing Reporter Proteins

Published on: April 17, 2020

Rotavirus vaccines.

Timo Vesikari1

  • 1University of Tampere, Medical School, Vaccine Research Center, Finland. timo.vesikari@uta.fi

Scandinavian Journal of Infectious Diseases
|December 17, 2008
PubMed
Summary
This summary is machine-generated.

Two oral rotavirus vaccines, Rotarix and RotaTeq, show high efficacy and safety in children. Post-marketing surveillance continues to monitor for rare side effects like intussusception.

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Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus
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Published on: January 28, 2019

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Simplified Reverse Genetics Method to Recover Recombinant Rotaviruses Expressing Reporter Proteins
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Published on: April 17, 2020

Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus
10:49

Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus

Published on: January 28, 2019

Area of Science:

  • Pediatrics
  • Vaccinology
  • Infectious Diseases

Background:

  • Two live attenuated oral rotavirus vaccines, Rotarix and RotaTeq, were licensed in 2006 for preventing severe acute gastroenteritis in children.
  • These vaccines target specific rotavirus serotypes (G1P[8] for Rotarix; G1-4 and P[8] for RotaTeq).

Purpose of the Study:

  • To evaluate the efficacy and safety of Rotarix and RotaTeq in preventing severe rotavirus gastroenteritis.
  • To assess the risk of intussusception associated with these rotavirus vaccines.
  • To review post-marketing data on vaccine safety.

Main Methods:

  • Analysis of pre-licensure clinical trials for both vaccines.
  • Review of post-marketing surveillance data on vaccine distribution and adverse events.
  • Focus on efficacy against severe gastroenteritis and incidence of intussusception.

Main Results:

  • Pre-licensure trials demonstrated high efficacy for both vaccines against severe rotavirus gastroenteritis.
  • Both vaccines exhibited low reactogenicity and no increased risk of intussusception in initial studies.
  • Millions of vaccine doses have been distributed globally with no major safety concerns identified to date.

Conclusions:

  • Rotavirus vaccines Rotarix and RotaTeq are effective in preventing severe gastroenteritis in children.
  • Initial safety data, including risk for intussusception, is reassuring.
  • Continued post-marketing surveillance and data analysis are essential for definitive safety conclusions.