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Rotavirus vaccine

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https://www.readbyqxmd.com/read/28104812/antibody-secreting-plasma-cells-persist-for-decades-in-human-intestine
#1
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...
January 19, 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
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/28070453/comparative-analysis-of-the-rotarix%C3%A2-vaccine-strain-and-g1p-8-rotaviruses-detected-before-and-after-vaccine-introduction-in-belgium
#7
Mark Zeller, Elisabeth Heylen, Sana Tamim, John K McAllen, Ewen F Kirkness, Asmik Akopov, Sarah De Coster, Marc Van Ranst, Jelle Matthijnssens
G1P[8] rotaviruses are responsible for the majority of human rotavirus infections worldwide. The effect of universal mass vaccination with rotavirus vaccines on circulating G1P[8] rotaviruses is still poorly understood. Therefore we analyzed the complete genomes of the Rotarix™ vaccine strain, and 70 G1P[8] rotaviruses, detected between 1999 and 2010 in Belgium (36 before and 34 after vaccine introduction) to investigate the impact of rotavirus vaccine introduction on circulating G1P[8] strains. All rotaviruses possessed a complete Wa-like genotype constellation, but frequent intra-genogroup reassortments were observed as well as multiple different cluster constellations circulating in a single season...
2017: PeerJ
https://www.readbyqxmd.com/read/28067936/unparalleled-patterns-of-intussusception-and-rotavirus-gastroenteritis-hospitalization-rates-among-children-younger-than-six-years-in-italy
#8
A Mattei, F Fiasca, M Mazzei, M Sbarbati
BACKGROUND: No nationwide studies are available so far in Italy to analyze the annual trend of hospitalizations for intussusception (IS) comparing it with that of rotavirus gastroenteritis (GARV), therefore a survey was undertaken to assess the incidence rates of IS and GARV in children hospitalized between 2005 and 2014 in Italy. STUDY DESIGN: A retrospective observational study was conducted analyzing the Italian Hospital Discharge Database (HDD), including a study on all hospitalizations bearing a primary or secondary diagnoses coded as 560...
January 2017: Annali di Igiene: Medicina Preventiva e di Comunità
https://www.readbyqxmd.com/read/28067093/rotavirus-epidemiology-5-6-years-after-universal-rotavirus-vaccination-persistent-rotavirus-activity-in-older-children-and-elderly
#9
Jukka Markkula, Maria Hemming-Harlo, Marjo T Salminen, Carita Savolainen-Kopra, Jaana Pirhonen, Haider Al-Hello, Timo Vesikari
BACKGROUND: Rotavirus (RV) vaccination using RotaTeq(®) vaccine exclusively was introduced into Finnish National Immunization Program (NIP) in 2009, and soon reached high (≥90%) coverage. Since mid-2013, all stool samples from laboratory diagnosed cases of RV gastroenteritis in the entire country have been typed. METHODS: 364 RV positive stool samples collected from clinical laboratories over a 2-year period were G- and P-typed using RT-PCR, and the results were confirmed by sequencing...
January 9, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28059619/comparison-of-iatrogenic-pain-between-rotavirus-vaccination-before-and-after-vaccine-injection-in-2-month-old-infants
#10
Hui-Chu Yin, Whei-Mei Shih, Hsiu-Lan Lee, Huei-Jing Yang, Yu-Li Chen, Shao-Wen Cheng, Chun-Yuh Yang, Ya-Wen Chiu, Yi-Hao Weng
Oral rotavirus vaccine (RV) administration in conjunction with other injectable vaccines has been used worldwide. However, whether the sequence of RV administration is associated with the reduction of injection-induced pain remains unclear. In this randomized controlled trial, we enrolled 6-12-wk-old healthy infants. The pain response of the infants was scored on the basis of their crying, irritability, facial expression, gagging and distress. A multivariate logistic regression model was used to compare the pain response after adjustment for possible confounders...
January 6, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28059609/rotavirus-specific-maternal-antibodies-and-immune-response-to-rv3-bb-neonatal-rotavirus-vaccine-in-new-zealand
#11
Mee-Yew Chen, Carl D Kirkwood, Julie Bines, Daniel Cowley, Daniel Pavlic, Katherine J Lee, Francesca Orsini, Emma Watts, Graeme Barnes, Margaret Danchin
Background Maternal antibodies, acquired passively via placenta and/or breast milk, may contribute to the reduced efficacy of oral rotavirus vaccine observed in children in developing countries. This study aimed to investigate the effect of rotavirus specific maternal antibodies on the serum IgA response or stool excretion of vaccine virus after any dose of an oral rotavirus vaccine, RV3-BB, in parallel to a Phase IIa clinical trial conducted at Dunedin Hospital, New Zealand. At the time of the study rotavirus vaccines had not been introduced in New Zealand and the burden of rotavirus disease was evident...
January 6, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28057385/evaluating-the-first-introduction-of-rotavirus-vaccine-in-thailand-moving-from-evidence-to-policy
#12
Piyanit Tharmaphornpilas, Suchada Jiamsiri, Somchit Boonchaiya, Onwipa Rochanathimoke, Wiravan Thinyounyong, Sumana Tuntiwitayapun, Ratigorn Guntapong, Arthorn Riewpaiboon, Aim-On Rasdjarmrearnsook, Roger I Glass
BACKGROUND: We assessed the effectiveness and possible impact of introducing rotavirus vaccine into the routine immunization program. METHODS: Two provinces were selected for an observational study, one where vaccine was introduced and another where vaccine was not available. In these areas, two sub-studies were linked. The prospective cohort study enrolled children 2month old and followed them to the age of 18months to detect all diarrhea episodes. The hospital surveillance study enrolled all children up to age 5 hospitalized with diarrhea whose fecal samples were tested for rotavirus...
January 2, 2017: Vaccine
https://www.readbyqxmd.com/read/28053934/rotavirus-vaccine-demand-in-pakistan
#13
Aamir Hussain
No abstract text is available yet for this article.
December 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28045042/erratum-emergence-of-human-g2p-4-rotaviruses-containing-animal-derived-gene-segments-in-the-post-vaccine-era
#14
Mark Zeller, Valerie Nuyts, Elisabeth Heylen, Sarah De Coster, Nádia Conceição-Neto, Marc Van Ranst, Jelle Matthijnssens
No abstract text is available yet for this article.
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28043228/australian-rotavirus-surveillance-program-annual-report-2015
#15
Susie Roczo-Farkas, Carl D Kirkwood, Julie E Bines
The Australian Rotavirus Surveillance Program, together with collaborating laboratories Australia-wide, reports the rotavirus genotypes responsible for the hospitalisation of children with acute gastroenteritis during the period 1 January to 31 December 2015. During the survey period, 1,383 faecal samples were referred for rotavirus G and P genotype analysis, and of these, 1,031 were confirmed as rotavirus positive. A total of 634 specimens had been collected from children under 5 years of age, while 397 were from older children and adults...
December 24, 2016: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28038948/-immunisation-schedule-of-the-spanish-association-of-paediatrics-2017-recommendations
#16
David Moreno-Pérez, Francisco José Álvarez García, Javier Arístegui Fernández, María José Cilleruelo Ortega, José María Corretger Rauet, Nuria García Sánchez, Ángel Hernández Merino, Teresa Hernández-Sampelayo Matos, Manuel Merino Moína, Luis Ortigosa Del Castillo, Jesús Ruiz-Contreras
The Advisory Committee on Vaccines of the Spanish Association of Paediatrics (CAV- AEP) annually publishes the immunisation schedule which, in our opinion, is considered optimal for children resident in Spain, taking into account the evidence available on current vaccines. Pneumococcal and varicella immunisation in early childhood is already included in all funded vaccines present in the regional immunisation programmes. Furthermore, this committee establishes recommendations on vaccines not included in official calendars (non-funded immunisations), such as rotavirus, meningococcal B, and meningococcal ACWY...
December 27, 2016: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28034476/defining-cases-of-severe-pediatric-diarrhea-for-an-efficacy-trial-of-an-enterotoxigenic-escherichia-coli-etec-vaccine-report-on-an-international-workshop-washington-dc-march-2016
#17
Thomas F Wierzba, Alexandra Bourgis
Enterotoxigenic Escherichia coli (ETEC) causes severe acute watery diarrhea. No ETEC vaccine is available but candidates are in development, including ETVAX, an oral, whole-cell inactivated vaccine. ETVAX is being tested in a descending-age trial in Bangladesh. If found safe and immunogenic, investigators may test it for efficacy in children. Like oral rotavirus vaccines, we expect that ETVAX will be most effective at decreasing the incidence of moderate-to-severe ETEC episodes. Thus, for an efficacy trial outcome, it will be necessary to triage patients into moderate-to-severe versus mild disease...
December 26, 2016: Vaccine
https://www.readbyqxmd.com/read/28007397/impact-of-the-national-rotavirus-vaccination-programme-on-acute-gastroenteritis-in-england-and-associated-costs-averted
#18
Sara L Thomas, Jemma L Walker, Justin Fenty, Katherine E Atkins, Alex J Elliot, Helen E Hughes, Julia Stowe, Shamez Ladhani, Nick J Andrews
BACKGROUND: Introduction of infant oral rotavirus vaccination in the UK in July 2013 has resulted in decreased hospitalisations and Emergency Department (ED) visits for acute gastroenteritis (AGE), for both adults and children. We investigated reductions in AGE incidence seen in primary care in the two years after vaccine introduction, and estimated the healthcare costs averted across healthcare settings in the first year of the vaccination programme. METHODS: We used primary care data from the Clinical Practice Research Datalink and age-stratified time-series analyses to derive adjusted incidence rate ratios (IRRa) for AGE in the first two years of the post-vaccination era (July 2013-April 2015) compared to the pre-vaccination era (July 2008-June 2013)...
December 19, 2016: Vaccine
https://www.readbyqxmd.com/read/27997518/burden-of-childhood-rotavirus-disease-in-the-outpatient-setting-of-the-russian-federation
#19
Yury V Lobzin, Susanna M Kharit, Michelle G Goveia, Megan A O'Brian, Alexander T Podkolzin, Boris M Blokhin, Maria K Bekhtereva, Alla V Rudakova, Nina V Tikunova
BACKGROUND: This is a prospective, multi centered study conducted in 9 large urban areas in Russia, in order to determine the burden of rotavirus gastroenteritis in children <5 years of age and the genotypes circulating during one rotavirus season. METHODS: From November 2012 to May 2013 surveillance was conducted in Moscow, Saint-Petersburg, Vologda, Krasnodar, Krasnoyarsk, Novosibirsk, Yaroslavl, Khanty-Mansiysk, and Vladivostok. Children < 5 years of age presenting at outpatient clinics with acute gastroenteritis (AGE) of less than 72 hours duration were enrolled in the study...
December 15, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27988496/resurgence-of-rotavirus-genotype-g12-in-st-louis-during-the-2014-2015-rotavirus-season
#20
Kristine M Wylie, Katherine M Stanley, Erin McElvania TeKippe, Kusal Mihindukulasuriya, Gregory A Storch
BACKGROUND: Rotaviruses are a leading cause of gastroenteritis. Rotavirus vaccination has dramatically reduced rotavirus occurrence; however, we have noticed mild to moderate recurrences in the St. Louis area in alternate years. In 2013, we found rotavirus genotype G12 to be the dominant strain in the St. Louis region. In this study, we again determined the distribution of genotypes and ascertained vaccine history in patients infected with rotavirus G12 during the 2014-15 season. METHODS: Samples submitted to the St...
December 17, 2016: Journal of the Pediatric Infectious Diseases Society
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