In 1999, the first rotavirus vaccine licensed in the USA was withdrawn 9 months after introduction due to an association with intussusception that was detected in post-licensure surveillance. This association prompted large clinical trials designed to ensure the safety of two current live oral rotavirus vaccines, RotaTeq and Rotarix, which have since been recommended for use worldwide. Following their introduction, post-licensure studies have focused not only on the effectiveness and impact of these vaccines, but also on continued surveillance for intussusception. Most recent evidence from several countries shows a small increased risk of intussusception following vaccination with Rotarix and RotaTeq within the context of their demonstrated benefits. This review summarizes the available data on the safety of rotavirus vaccines with regards to intussusception.
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http://dx.doi.org/10.1586/14760584.2014.942223 | DOI Listing |
J Gen Virol
January 2025
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases (NITFID), NHC Key Laboratory for Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Beijing 100052, PR China.
Species A rotaviruses (RVs), which belong to the family and contain a genome of 11 segmented dsRNA segments, are a leading cause of severe acute gastroenteritis in infants and children younger than 5 years of age. We previously developed a strategy to recover rotavirus vaccine strain LLR from 11 cloned plasmids. Here, we report an improved reverse genetics system for LLR by combining two or three transcriptional cassettes in a single plasmid, which substantially enhances rescue efficiency from 66.
View Article and Find Full Text PDFCardiovasc Diagn Ther
December 2024
Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, Munich, Germany.
Background: Patients with congenital heart defects (CHDs) are at higher risk for infectious diseases. This may partly be due to frequent hospital stays and the associated exposure to pathogens. This study aims to provide a comprehensive overview of immunisation coverage among twins in which at least one twin has CHD.
View Article and Find Full Text PDFClin Exp Immunol
January 2025
Bill & Melinda Gates Foundation, Seattle, WA, USA.
Oral vaccines have several advantages compared with parenteral administration: they can be relatively cheap to produce in high quantities, easier to administer, and induce intestinal mucosal immunity that can protect against infection. These characteristics have led to successful use of oral vaccines against rotavirus, polio, and cholera. Unfortunately, oral vaccines for all three diseases have demonstrated lower performance in the highest-burden settings where they are most needed.
View Article and Find Full Text PDFViruses
December 2024
Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Interdisciplinary Center for Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal.
Rotavirus group A (RVA) is a major cause of pediatric acute gastroenteritis (AGE). Vaccination is an effective public health strategy and Angola implemented it in 2014. This hospital-based study aimed to estimate the prevalence of RVA infection and the severity of AGE in children under five years of age treated at six hospitals in Luanda Province.
View Article and Find Full Text PDFVaccines (Basel)
November 2024
U.S. Centers for Disease Control and Prevention, Global Immunization Division, Global Health Center, Atlanta, GA 30329, USA.
Uganda's Integrated Child Health Day (ICHD) initiative aims to improve children's access to vaccinations. Although widely used as a catch-up vaccination strategy, the effectiveness of the ICHD program in increasing immunization coverage, especially among vulnerable populations, has not been recently evaluated. This study assessed the reach and uptake of ICHD for immunizations in Uganda.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!