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Related Concept Videos

Vaccinations01:51

Vaccinations

Overview
Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
Vaccine Production01:23

Vaccine Production

Vaccine production involves a sequence of upstream and downstream processes to generate a safe and effective immunological product. It begins with cultivating microorganisms, such as viruses or bacteria, to obtain antigenic material. For viral vaccines, mammalian host cells are grown in bioreactors and subsequently infected with the target virus. The virus replicates within the host cells, which are lysed to release viral particles. This lysate is then clarified through filtration or...
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...
Poliomyelitis01:17

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...
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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Early-life gut microbiome composition and rotavirus vaccine-induced IgA responses in U.S. infants: a longitudinal cohort study.

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Related Experiment Video

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Utilizing the Antigen Capsid-Incorporation Strategy for the Development of Adenovirus Serotype 5-Vectored Vaccine Approaches
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Rotavirus vaccines: current prospects and future challenges.

Roger I Glass1, Umesh D Parashar, Joseph S Bresee

  • 1Viral Gastroenteritis Section, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA. Rglass@cdc.gov

Lancet (London, England)
|July 25, 2006
PubMed
Summary

Rotavirus vaccines offer significant protection against severe diarrhea in children globally. These vaccines are safe and effective, poised to reduce child mortality and hospitalizations worldwide.

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Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Vaccinology

Background:

  • Rotavirus is a leading cause of severe childhood diarrhea and mortality globally.
  • International health organizations prioritize rotavirus vaccine development and implementation.

Purpose of the Study:

  • To evaluate the efficacy and safety of newly developed rotavirus vaccines.
  • To assess the potential impact of rotavirus vaccination on child morbidity and mortality.

Main Methods:

  • Review of clinical trial data for two licensed live oral rotavirus vaccines.
  • Analysis of vaccine effectiveness in preventing severe rotavirus diarrhea and intussusception.

Main Results:

  • Both licensed rotavirus vaccines demonstrate high efficacy in preventing severe diarrhea in children.
  • Vaccines are safe, with no increased risk of intussusception.
  • Potential to significantly reduce childhood hospitalizations and deaths from diarrhea.

Conclusions:

  • Rotavirus vaccines hold promise for improving child health and survival globally.
  • Vaccination can decrease healthcare costs associated with childhood diarrhea.
  • Overcoming implementation challenges is key to realizing the full global impact of rotavirus vaccines.