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Rotavirus vaccine

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https://www.readbyqxmd.com/read/28212334/transfer-of-anti-rotavirus-antibodies-during-pregnancy-and-in-milk-following-maternal-vaccination-with-a-herpes-simplex-virus-type-1-amplicon-vector
#1
Anita F Meier, Mark Suter, Elisabeth M Schraner, Bruno M Humbel, Kurt Tobler, Mathias Ackermann, Andrea S Laimbacher
Rotaviruses (RVs) are important enteric pathogens of newborn humans and animals, causing diarrhea and in rare cases death, especially in very young individuals. Rotavirus vaccines presently used are modified live vaccines that lack complete biological safety. Previous work from our laboratory suggested that vaccines based on in situ produced, non-infectious rotavirus-like particles (RVLPs) are efficient while being entirely safe. However, using either vaccine, active mucosal immunization cannot induce protective immunity in newborns due to their immature immune system...
February 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28209436/is-colombia-reaching-the-goals-on-infant-immunization-coverage-a-quantitative-survey-from-80-municipalities
#2
Javier Narváez, May Bibiana Osorio, Carlos Castañeda-Orjuela, Nelson Alvis Zakzuk, Natalia Cediel, Luz Ángela Chocontá-Piraquive, Fernando de La Hoz-Restrepo
OBJECTIVES: This study aimed to evaluate the coverage of the Colombian Expanded Program on Immunization among children less than 6years old, to evaluate the timeliness of immunization, to assess the coverage of newly introduced vaccines, and to identify factors associated with lack of immunization. METHODS: We conducted a cross-sectional survey in 80 municipalities of Colombia, using a two-stage cluster random sampling. We attempted to contact all children less than 6years old living in the sampled blocks, and asked their caregivers to provide immunization record cards...
February 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28207817/comparative-analysis-of-the-immunogenicity-of-monovalent-and-multivalent-rotavirus-immunogens
#3
Kai Mi, Xia Ou, Lili Guo, Jing Ye, Jinyuan Wu, Shan Yi, Xianglian Niu, Xiaoqin Sun, Hongjun Li, Maosheng Sun
The strategies for developing rotavirus (RV) vaccines have always been controversial. At present, both the monovalent RV vaccine and the multivalent RV vaccine have displayed excellent safety and efficacy against RV infection and shown cross-reactive immunity, which laid the question whether the multivalent RV vaccine could be replaced by the monovalent RV vaccine. In this study, we focused on comparing the immunogenicity (serum neutralization activity and protection against homotypic and heterotypic RVs' challenge) of individual standard RV strains (monovalent RV immunogens) and different combinations of them (multivalent RV immunogens)...
2017: PloS One
https://www.readbyqxmd.com/read/28185740/vaccine-adverse-events-in-a-safety-net-healthcare-system-and-a-managed-care-organization
#4
Komal J Narwaney, Kristin Breslin, Colleen A Ross, Jo Ann Shoup, Kris F Wain, Eric S Weintraub, Michael M McNeil, Simon J Hambidge
BACKGROUND: The Institute of Medicine, in a 2013 report, recommended that the Vaccine Safety Datalink (VSD) expand collaborations to include more diversity in the study population. Kaiser Permanente Colorado (KPCO), an established VSD site, partnered with Denver Health (DH), an integrated safety net healthcare system, to demonstrate the feasibility of integrating DH data within the VSD. Prior to incorporating the data, we examined the identification of specific vaccine associated adverse events (VAEs) in these two distinct healthcare systems...
February 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28168269/inflammation-and-immune-activation-in-antiretroviral-treated-hiv-1-infected-african-infants-and-rotavirus-vaccine-responses
#5
Priyanka Uprety, Jane C Lindsey, Myron J Levin, Kaitlin Rainwater-Lovett, Carrie Ziemniak, Mutsa Bwakura-Dangarembizix, Susan S Kaplan, Micki Nelson, Amanda Zadzilka, Adriana Weinberg, Deborah Persaud
No abstract text is available yet for this article.
February 7, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28167599/genotypic-distribution-of-rotavirus-in-phnom-penh-cambodia-an-association-of-g9-with-more-severe-diseases
#6
Sasikorn Silapong, Pimmada Sakpaisal, Ladaporn Bodhidatta, Paphavee Lertsethtakarn, Orntipa Sethabutr, Ket Vansith, Chhour Y Meng, Brett E Swierczewski, Carl J Mason
Rotavirus causes significant morbidity and mortality among children worldwide. Stool samples from a previous hospital-based surveillance study to detect diarrhea etiology at the National Pediatric Hospital in Phnom Penh, Cambodia, by Meng and others in 2011 were tested for rotavirus by real-time reverse transcription polymerase chain reaction (PCR) targeting vp6 gene and characterized for G- and P-genotypes of positive samples based on vp7 and vp4 genes, respectively. Rotavirus was detected in 159/531 (30%) of children with diarrhea and none was detected in 287 nondiarrhea controls...
February 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28163948/rectal-bleeding-and-abdominal-pain-following-vaccination-in-a-4-month-old-infant
#7
Jaclyn Otero, Molly R Posa, Maria N Kelly
Intussusception is one of the most frequent causes of intestinal obstruction in infants. Rotavirus vaccination has been associated with intussusception in the medical literature. We report a case of a 4-month-old female with intussusception requiring hemicolectomy one week following rotavirus vaccination. We review the pathophysiology, presentation, and management of intussusception with a distinct focus on the history of rotavirus vaccination and risks of intussusception associated with timing of rotavirus vaccine administration...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28162821/safety-of-live-vaccinations-on-immunosuppressive-therapy-in-patients-with-immune-mediated-inflammatory-diseases-solid-organ-transplantation-or-after-bone-marrow-transplantation-a-systematic-review-of-randomized-trials-observational-studies-and-case-reports
#8
REVIEW
Evelina Croce, Christoph Hatz, Emile F Jonker, L G Visser, Veronika K Jaeger, Silja Bühler
BACKGROUND: Live vaccines are generally contraindicated on immunosuppressive therapy due to safety concerns. However, data are limited to corroborate this practice. OBJECTIVES: To estimate the safety of live vaccinations in patients with immune-mediated inflammatory diseases (IMID) or solid organ transplantation (SOT) on immunosuppressive treatment and in patients after bone-marrow transplantation (BMT). DATA SOURCES: A search was conducted in electronic databases (Cochrane, Pubmed, Embase) and additional literature was identified by targeted searches...
February 2, 2017: Vaccine
https://www.readbyqxmd.com/read/28160726/acute-norovirus-gastroenteritis-in-children-in-a-highly-rotavirus-vaccinated-population-in-northeast-brazil
#9
Victor S Santos, Ricardo Q Gurgel, Sandra M M Cavalcante, Andrew Kirby, Lilian P Café, Maria J Souto, Silvio S Dolabella, Matheus R de Assis, Tulio M Fumian, Marize P Miagostovich, Nigel A Cunliffe, Luis E Cuevas
BACKGROUND: Gastroenteritis is one of the most important causes of morbidity and mortality in children and an important etiological agent is norovirus. OBJECTIVE: We describe the occurrence and characteristics of norovirus diarrhoea in children from Sergipe, Northeast-Brazil, over two consecutive periods of three years following rotavirus vaccine introduction. STUDY DESIGN: A cross sectional hospital-based survey conducted from October-2006 to September-2009 and from July-2011 to January-2013...
October 29, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28145650/epidemiology-and-factors-related-to-clinical-severity-of-acute-gastroenteritis-in-hospitalized-children-after-the-introduction-of-rotavirus-vaccination
#10
Ahlee Kim, Ju Young Chang, Sue Shin, Hana Yi, Jin Soo Moon, Jae Sung Ko, Sohee Oh
We aimed to investigate epidemiology and host- and pathogen-related factors associated with clinical severity of acute gastroenteritis (AGE) in children after rotavirus vaccination introduction. Factors assessed included age, co-infection with more than 2 viruses, and virus-toxigenic Clostridium difficile co-detection. Fecal samples and clinical information, including modified Vesikari scores, were collected from hospitalized children with AGE. The presence of enteric viruses and bacteria, including toxigenic C...
March 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28141698/safety-tolerability-and-immunogenicity-of-pentavalent-rotavirus-vaccine-manufactured-by-a-modified-process
#11
Federico Martinón-Torres, Marc Dionne, David Greenberg, Meera Varman, John A Killar, Darcy Hille, Erica L Strable, Jon E Stek, Susan S Kaplan
BACKGROUND: Rotavirus is the leading cause of severe diarrhea in infants and young children. The current formulation of pentavalent rotavirus vaccine (RV5) must be stored refrigerated at 2 to 8°C. A modified formulation of RV5 (RV5mp) has been developed with stability at 37°C for 7 days and an expiry extended to 36 months when stored at 2 to 8°C. METHODS: This study (NCT01600092; EudraCT 2012-001611-23) evaluated the safety, tolerability and immunogenicity of RV5mp versus the currently marketed RV5 in infants...
January 27, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28140752/concomitant-administration-of-diphtheria-tetanus-acellular-pertussis-and-inactivated-poliovirus-vaccine-derived-from-sabin-strains-dtap-sipv-with-pentavalent-rotavirus-vaccine-in-japanese-infants
#12
Yoshiyuki Tanaka, Ruriko Yokokawa, Han Shi Rong, Hiroyuki Kishino, Jon E Stek, Margaret Nelson, Jody Lawrence
Rotavirus is the leading cause of severe acute gastroenteritis in infants and young children. Most children are infected with rotavirus, and the health and economic burdens of rotavirus gastroenteritis on healthcare systems and families are considerable. In 2012 pentavalent rotavirus vaccine (RV5) and diphtheria, tetanus, acellular pertussis and inactivated poliovirus vaccine derived from Sabin strains (DTaP-sIPV) were licensed in Japan. We examined the immunogenicity and safety of DTaP-sIPV when administrated concomitantly with RV5 in Japanese infants...
January 31, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28138375/designing-construction-and-expression-of-a-recombinant-fusion-protein-comprising-the-hepatitis-e-virus-orf2-and-rotavirus-nsp4-in-the-baculovirus-expression-system
#13
Manoochehr Makvandi, Ali Teimoori, Niloofar Neisi, Alireza Samarbafzadeh
BACKGROUND: The hepatitis E virus (HEV) accounts for hepatitis E infection with relatively high mortality rate in pregnant women that can lead to fulminant hepatitis. The baculovirus expression system (BES) has the capability to produce high-level recombinant proteins and could be useful for vaccine designing. OBJECTIVES: The aim of this study was designing a recombinant hepatitis E virus ORF2 and Rotavirus NSP4 (ORF2-NSP4) and to evaluating construction these recombinant proteins in the BES...
November 2016: Jundishapur Journal of Microbiology
https://www.readbyqxmd.com/read/28137864/entirely-plasmid-based-reverse-genetics-system-for-rotaviruses
#14
Yuta Kanai, Satoshi Komoto, Takahiro Kawagishi, Ryotaro Nouda, Naoko Nagasawa, Misa Onishi, Yoshiharu Matsuura, Koki Taniguchi, Takeshi Kobayashi
Rotaviruses (RVs) are highly important pathogens that cause severe diarrhea among infants and young children worldwide. The understanding of the molecular mechanisms underlying RV replication and pathogenesis has been hampered by the lack of an entirely plasmid-based reverse genetics system. In this study, we describe the recovery of recombinant RVs entirely from cloned cDNAs. The strategy requires coexpression of a small transmembrane protein that accelerates cell-to-cell fusion and vaccinia virus capping enzyme...
January 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28104812/antibody-secreting-plasma-cells-persist-for-decades-in-human-intestine
#15
Ole J B Landsverk, Omri Snir, Raquel Bartolomé Casado, Lisa Richter, Jeff E Mold, Pedro Réu, Rune Horneland, Vemund Paulsen, Sheraz Yaqub, Einar Martin Aandahl, Ole M Øyen, Hildur Sif Thorarensen, Mehran Salehpour, Göran Possnert, Jonas Frisén, Ludvig M Sollid, Espen S Baekkevold, Frode L Jahnsen
Plasma cells (PCs) produce antibodies that mediate immunity after infection or vaccination. In contrast to PCs in the bone marrow, PCs in the gut have been considered short lived. In this study, we studied PC dynamics in the human small intestine by cell-turnover analysis in organ transplants and by retrospective cell birth dating measuring carbon-14 in genomic DNA. We identified three distinct PC subsets: a CD19(+) PC subset was dynamically exchanged, whereas of two CD19(-) PC subsets, CD45(+) PCs exhibited little and CD45(-) PCs no replacement and had a median age of 11 and 22 yr, respectively...
February 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28094831/barnvaccinationsprogrammet-%C3%A2-effektivt-men-otillr%C3%A3-ckligt-erfarenheter-fr%C3%A3-n-astrid-lindgrens-barnsjukhus-2008%C3%A2-2013
#16
Åsa Laestadius, Anna Nilsson, Rutger Bennet, Gordana Bogdanovic, Margareta Eriksson
The national Swedish immunisation programme includes vaccine against diphtheria, tetanus, polio, pertussis, Haemophilus influenzae type B, Pneumococcus as well as measles, mumps and rubella. Data were collected on hospital admissions for children 0- 17 years of age of vaccine-preventable diseases during 2008-2013 at Astrid Lindgren Children's Hospital, Stockholm. Patients were identified by discharge diagnosis codes as well as from the clinical microbiology laboratory. There were rare cases of measles and mumps, and only a few cases of invasive bacterial diseases...
January 16, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28090561/diversity-in-rotavirus-host-glycan-interactions-a-sweet-spectrum
#17
REVIEW
Sasirekha Ramani, Liya Hu, B V Venkataram Prasad, Mary K Estes
Interaction with cellular glycans is a critical initial step in the pathogenesis of many infectious agents. Technological advances in glycobiology have expanded the repertoire of studies delineating host glycan-pathogen interactions. For rotavirus, the VP8* domain of the outer capsid spike protein VP4 is known to interact with cellular glycans. Sialic acid was considered the key cellular attachment factor for rotaviruses for decades. Although this is true for many rotavirus strains causing infections in animals, glycan array screens show that many human rotavirus strains bind nonsialylated glycoconjugates, called histo-blood group antigens, in a strain-specific manner...
May 2016: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28088400/hospitalizations-for-respiratory-syncytial-virus-and-vaccine-preventable-infections-in-the-first-2-years-after-pediatric-liver-transplant
#18
Amy G Feldman, Shikha S Sundaram, Brenda L Beaty, Allison Kempe
OBJECTIVES: To examine in liver transplant recipients at centers participating in the Pediatric Health Information System dataset the number of hospitalizations for respiratory syncytial virus (RSV) and vaccine-preventable infections (VPIs) in the first 2 years after transplantation, morbidity and mortality associated with these hospitalizations, and costs associated with these hospitalizations. STUDY DESIGN: A retrospective cohort study of patients <18 years of age who underwent liver transplantation at a Pediatric Health Information System center between January 1, 2004, and December 31, 2012...
January 11, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28086819/efficacy-safety-and-effectiveness-of-licensed-rotavirus-vaccines-a-systematic-review-and-meta-analysis-for-latin-america-and-the-caribbean
#19
Raúl F Velázquez, Alexandre C Linhares, Sergio Muñoz, Pamela Seron, Pedro Lorca, Rodrigo DeAntonio, Eduardo Ortega-Barria
BACKGROUND: RotaTeq™ (RV5; Merck & Co. Inc., USA) and Rotarix™ (RV1, GlaxoSmithKline, Belgium) vaccines, developed to prevent rotavirus diarrhea in children under five years old, were both introduced into national immunization programs in 2006. As many countries in Latin America and the Caribbean have included either RV5 or RV1 in their routine childhood vaccination programs, we conducted a systematic review and meta-analysis to analyze efficacy, safety and effectiveness data from the region...
January 13, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28075671/hospitalization-rates-for-intussusception-in-children-aged-0-59%C3%A2-months-from-2009-to-2014-in-italy
#20
Vincenzo Restivo, Claudio Costantino, Fabio Tramuto, Francesco Vitale
The real cause of intussusception is not fully understood and a variety of conditions have been associated with it (Meckel diverticulum, polyps, duplication cysts, parasites, Henoch-Schönlein purpura, cystic fibrosis, hemolytic-uremic syndrome and infectious gastroenteritis). Furthermore few European countries, following WHO recommendation to monitor baseline incidence of intussusception before implementation of immunization program for rotavirus, used intussusception rate as a baseline value to compare the same figures in the period before and after introduction of vaccination...
January 11, 2017: Human Vaccines & Immunotherapeutics
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