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Hepatitis b vaccination

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https://www.readbyqxmd.com/read/28918379/infanrix-hexa-and-sudden-death-a-review-of-the-periodic-safety-update-reports-submitted-to-the-european-medicines-agency
#1
Jacob Puliyel, C Sathyamala
There have been a number of spontaneous reports of sudden unexpected death soon after the administration of Infanrix hexa (combined diphtheria, tetanus, acellular pertussis, hepatitis B, inactivated poliomyelitis and Haemophilus influenza type B vaccine). The manufacturer, GlaxoSmithKline (GSK), submits confidential periodic safety update reports (PSURs) on Infanrix hexa to the European Medicines Agency (EMA). The latest is the PSUR 19. Each PSUR contains an analysis of observed/expected sudden deaths, which shows that the number of observed deaths soon after immunisation is lower than that expected by chance...
September 5, 2017: Indian Journal of Medical Ethics
https://www.readbyqxmd.com/read/28917537/hbcag-produced-in-transgenic-tobacco-triggers-th1-and-th2-response-when-intramuscularly-delivered
#2
Marcin Pyrski, Anna Rugowska, Kamil Robert Wierzbiński, Anna Kasprzyk, Maria Bogusiewicz, Piotr Bociąg, Sławomir Samardakiewicz, Marcin Czyż, Maciej Kurpisz, Tomasz Pniewski
Hepatitis B core Antigen (HBcAg) assembled into Capsid-Like Particles (CLPs) is investigated as a therapeutic vaccine in treatment of chronic hepatitis B (CHB) and in diagnostic tests or as a carrier for various epitopes. While the expression of HBcAg has been thoroughly clarified in E. coli and yeast, it has also been investigated in other expression systems. Stably transformed tobacco expressed HBcAg at a level of 110-250µg/g fresh weight, therefore in view of its large leaf biomass it offers a production platform comparable with transient expression systems regarding the final yield of HBcAg...
September 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28915998/predictors-of-humoral-response-to-recommended-vaccines-in-hiv-infected-adults
#3
Olga Tsachouridou, Eirini Christaki, Lemonia Skoura, Adamantini Georgiou, Sideris Nanoudis, Dimitra Vasdeki, Maria-Anna Ntziovara, Georgia Kotoreni, Evropi Forozidou, Paraskevi Tsoukra, Georgios Germanidis, Symeon Metallidis
Humoral response to vaccination has been found to be inadequate in individuals infected with the human immunodeficiency virus (HIV). We retrospectively assessed antibody responses to three routinely recommended vaccines, against hepatitis B, hepatitis A and S. pneumoniae, in HIV-infected individuals. Data regarding age at HIV diagnosis, years of infection, sex, nationality, HIV mode of transmission, CD4 cell count, nadir CD4 count, plasma viral load, HIV stage, insurance status, educational level and treatment with Highly Active Antiretroviral Therapy (HAART) were collected...
October 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28915391/hepatitis-b-surface-antigen-incorporated-in-dissolvable-microneedle-array-patch-is-antigenic-and-thermostable
#4
Danielle Poirier, Frédéric Renaud, Vincent Dewar, Laurent Strodiot, Florence Wauters, Jim Janimak, Toshio Shimada, Tatsuya Nomura, Koki Kabata, Koji Kuruma, Takayuki Kusano, Masaki Sakai, Hideo Nagasaki, Takayoshi Oyamada
Alternatives to syringe-based administration are considered for vaccines. Intradermal vaccination with dissolvable microneedle arrays (MNA) appears promising in this respect, as an easy-to-use and painless method. In this work, we have developed an MNA patch (MNAP) made of hydroxyethyl starch (HES) and chondroitin sulphate (CS). In swines, hepatitis B surface antigen (HBsAg) formulated with the saponin QS-21 as adjuvant, both incorporated in HES-based MNAP, demonstrated the same level of immunogenicity as a commercially available aluminum-adjuvanted HBsAg vaccine, after two immunizations 28 days apart...
August 29, 2017: Biomaterials
https://www.readbyqxmd.com/read/28910922/-comparison-of-antibody-persistence-after-primary-immunization-with-5-%C3%AE-g-and-10-%C3%AE-g-recombinant-hepatitis-b-vaccine-among-newborns-with-normal-and-high-response-a-five-year-following-up
#5
L Zhang, W Zhang, J J Lyu, J J Zhang, J Y Liu, B Y Yan, Y Feng, X F Liang, F Q Cui, F Z Wang, G M Zhang, A Q Xu
Objective: To compare the antibody persistence 5 years after primary immunization with 5 μg and 10 μg recombinant hepatitis B vaccine (HepB) among newborns with normal and high response. Methods: Newborns who completed three doses of 5 μg HepB made by recombinant dexyribonucleic acid technique in Saccharomyces (HepB-SC) or 10 μg HepB made by recombinant dexyribonucleic acid technique in Hansenula polymorpha (HepB-HP) were recruited. Standardized questionnaire was used and blood samples were collected 1-6 months (T(0)) and five years (T(1)) after the third dose respectively...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28910921/-effectiveness-of-rapid-hepatitis-b-vaccination-with-different-vaccine-dosages-and-types-in-adults
#6
L Nie, X H Pang, Z Zhang, J X Ma, X Y Liu, Q Qiu, Y Liang, Q Li, W Zhang
Objective: To evaluate the effectiveness of rapid hepatitis B vaccination with different vaccine dosages and types in adults. Methods: Adults who were aged ≥20 years, negative in the detections of 5 HBV serum markers or only anti-HBc positive were selected from Chaoyang district of Beijing. They were divided into 4 community-based specific groups and given three doses of 10 μg HepB-SCY vaccine, 20 μg HepB-SCY vaccine, 20 μg HepB-CHO vaccine and 10 μg HepB-HPY vaccine respectively at month 0, 1, and 2...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28905444/response-to-hepatitis-b-vaccination-in-patients-with-liver-cirrhosis
#7
REVIEW
Ioanna Aggeletopoulou, Panagiota Davoulou, Christos Konstantakis, Konstantinos Thomopoulos, Christos Triantos
Hepatitis B vaccination is strongly recommended for all infants and children but also for adults who are at risk of HBV infection. Attempts to immunize patients with liver cirrhosis have been proven relatively ineffective, and several strategies have already been used to improve the immune response in this group. The primary aim of this review is to examine, discuss, and summarize the immunogenicity of hepatitis B vaccination in patients with liver cirrhosis. MEDLINE search identified 11 studies (n = 961)...
September 14, 2017: Reviews in Medical Virology
https://www.readbyqxmd.com/read/28903797/prevalence-of-anti-hepatitis-b-surface-antibodies-among-children-and-adolescents-vaccinated-in-infancy-and-effect-of-booster-dose-administered-within-a-pilot-study
#8
R Bassal, M P Markovich, M Weil, E Shinar, Y Carmeli, M Dan, D Sofer, E Mendelson, D Cohen, T Shohat
We determined the prevalence of anti-hepatitis B surface antibodies (anti-HBs) among children and adolescents vaccinated for hepatitis B virus in infancy as part of the routine vaccination programme. A representative serum sample of the Israeli population age 0-19 was tested. In a separate pilot study, a booster dose of hepatitis B vaccine was administered to 31 candidates for national service, who were fully vaccinated in infancy and tested negative for hepatitis B surface antibodies at age 17-19 years and anti-HBs antibodies were assessed 8 weeks later...
September 14, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28903515/update-from-the-advisory-committee-on-immunization-practices
#9
Sean T O'Leary, Yvonne A Maldonado, Carrie L Byington
The Advisory Committee on Immunization Practices (ACIP), a group of medical and public health experts, meets 3 times per year to develop recommendations for vaccine use in the United States. The group has 15 voting members, and each member's term is 4 years. ACIP members and Centers for Disease Control and Prevention (CDC) staff discuss the epidemiology of vaccine-preventable diseases and vaccine research, effectiveness, safety data, and clinical trial results. Representatives from the American Academy of Pediatrics (C...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28902234/monitoring-of-post-vaccination-anti-hbs-titles-vaccine-in-children-and-adolescents-in-the-pre-dialysis-of-chronic-kidney-disease
#10
Nathália Cristina Pereira da Costa, Mônica Ribeiro Canhestro, Cristina Maria Bouissou Morais Soares, Juliana Scudilio Rodrigues
Introduction: Bacterial or viral diseases are one of the major causes of death in patients with chronic kidney disease (CKD). These patients show a quantitative reduction of levels of antibodies over time. Among the infectious diseases that affect CKD patients, stands out hepatitis B (HB). Immunization and control of antibodies levels against the hepatitis B surface antigen (anti-HBs) are ways to prevent the HB infection in this population. Patients with anti-HBs levels ≥10 IU/ml are considered adequate responders, whereas those with anti-HBs levels ≥ 100 IU/ml are considered excellent responders...
August 28, 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/28899424/clade-homogeneity-and-low-rate-of-delta-virus-despite-hyperendemicity-of-hepatitis-b-virus-in-ethiopia
#11
Yeshambel Belyhun, Uwe Gerd Liebert, Melanie Maier
BACKGROUND: Although hepatitis B virus (HBV) is hyperendemic and heterogeneous in its genetic diversity in Ethiopia, little is known about hepatitis D virus (HDV) circulating genotypes and molecular diversity. METHODS: A total of 321 hepatitis B surface antigen (HBsAg) positives (125 HIV co-infected, 102 liver disease patients and 94 blood donors) were screened for anti-HDV antibody. The anti-HDV positive sera were subjected to Real time PCR for HDV-RNA confirmation...
September 12, 2017: Virology Journal
https://www.readbyqxmd.com/read/28893935/tumour-virus-vaccines-hepatitis-b-virus-and-human-papillomavirus
#12
REVIEW
Margaret Stanley
Two of the most important human oncogenic viruses are hepatitis B virus (HBV) and human papillomavirus (HPV). HBV infection has been preventable by vaccination since 1982; vaccination of neonates and infants is highly effective, resulting already in decreased rates of new infections, chronic liver disease and hepato-cellular carcinoma. Nonetheless, HBV remains a global public health problem with high rates of vertical transmission from mother to child in some regions. Prophylactic HPV vaccines composed of virus-like particles (VLPs) of the L1 capsid protein have been licensed since 2006/2007...
October 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28893741/prevention-and-assessment-of-infectious-diseases-among-children-and-adult-migrants-arriving-to-the-european-union-european-economic-association-a-protocol-for-a-suite-of-systematic-reviews-for-public-health-and-health-systems
#13
Kevin Pottie, Alain D Mayhew, Rachael L Morton, Christina Greenaway, Elie A Akl, Prinon Rahman, Dominik Zenner, Manish Pareek, Peter Tugwell, Vivian Welch, Joerg Meerpohl, Pablo Alonso-Coello, Charles Hui, Beverley-Ann Biggs, Ana Requena-Méndez, Eric Agbata, Teymur Noori, Holger J Schünemann
INTRODUCTION: The European Centre for Disease Prevention and Control is developing evidence-based guidance for voluntary screening, treatment and vaccine prevention of infectious diseases for newly arriving migrants to the European Union/European Economic Area. The objective of this systematic review protocol is to guide the identification, appraisal and synthesis of the best available evidence on prevention and assessment of the following priority infectious diseases: tuberculosis, HIV, hepatitis B, hepatitis C, measles, mumps, rubella, diphtheria, tetanus, pertussis, poliomyelitis (polio), Haemophilus influenza disease, strongyloidiasis and schistosomiasis...
September 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28893288/potential-contribution-of-gut-microbiota-and-systemic-inflammation-on-hiv-vaccine-effectiveness-and-vaccine-design
#14
REVIEW
Jean-Pierre Routy, Vikram Mehraj
The quest for an effective HIV-1 vaccine began as soon as the virus causing AIDS was identified. After several disappointing attempts, results of the Phase-III RV144 trial in Thailand were a beacon of hope for the field demonstrating correlation between protection and immunological markers. In order to optimize vaccine response, we underline results from yellow fever and hepatitis B vaccines, where protective responses were predicted by the pre-vaccination level of immune activation in healthy individuals. Such findings support the assessment and reduction of pre-vaccine immune activation in order to optimize vaccine response...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28891541/inequity-in-access-to-childhood-immunization-in-enugu-urban-southeast-nigeria
#15
B S Uzochukwu, C C Okeke, E Envuladu, C Mbachu, C Okwuosa, O E Onwujekwe
BACKGROUND: The Nigerian National Programme on Immunization aims at increasing the immunization coverage of children under 1 year of age. However, there is still a gap between the national immunization targets and the immunization coverage rates, and data are rarely disaggregated according to socioeconomic status. As a result, there is a dearth of information about the coverage of subgroups, especially at the local level. This study determined the socioeconomic differentials in immunization coverage for children under 5 years and under 1 year in Enugu urban, Southeast Nigeria...
August 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28888842/evidence-refuting-the-existence-of-autoimmune-autoinflammatory-syndrome-induced%C3%A2-by-adjuvants-asia
#16
Rohan Ameratunga, David Gillis, Michael Gold, Allan Linneberg, J Mark Elwood
Autoimmune/autoinflammatory syndrome induced by adjuvants (ASIA) was described in 2011. Over time the condition and its triggers have broadened to include several autoimmune disorders, the macrophagic myofasciitis syndrome, the Gulf war syndrome, the sick building syndrome, siliconosis, and the chronic fatigue syndrome. The aluminum-containing adjuvants in the hepatitis B vaccine and the human papillomavirus vaccine in particular have been stated to be the major causes of the disorder. Here, we review the specificity of the diagnostic criteria for ASIA...
September 6, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28887001/major-findings-and-recent-advances-in-virus-like-particle-vlp-based-vaccines
#17
REVIEW
Mona O Mohsen, Lisha Zha, Gustavo Cabral-Miranda, Martin F Bachmann
Virus-like particles (VLPs) have made giant strides in the field of vaccinology over the last three decades. VLPs constitute versatile tools in vaccine development due to their favourable immunological characteristics such as their size, repetitive surface geometry, ability to induce both innate and adaptive immune responses as well as being safe templates with favourable economics. Several VLP-based vaccines are commercially available including vaccines against Human Papilloma Virus (HPV) such as Cervarix(®), Gardasil(®) & Gardasil9(®) and Hepatitis B Virus (HBV) including the 3rd generation Sci-B-Vac™...
September 5, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28886050/establishing-contemporary-trends-in-hepatitis-b-sero-epidemiology-in-an-indigenous-population
#18
Jane Davies, Shu Qin Li, Steven Y Tong, Rob W Baird, Miles Beaman, Geoff Higgins, Benjamin C Cowie, John R Condon, Joshua S Davis
BACKGROUND: Indigenous populations globally are disproportionately affected by chronic hepatitis B virus (HBV) infection however contemporary sero-prevalence data are often absent. In the Indigenous population of the Northern Territory (NT) of Australia the unique C4 sub-genotype of HBV universally circulates. There are no studies of the sero-prevalence, nor the impact of the vaccination program (which has a serotype mismatch compared to C4), at a population-wide level. METHODS: We examined all available HBV serology results obtained from the three main laboratories serving NT residents between 1991 and 2011...
2017: PloS One
https://www.readbyqxmd.com/read/28883462/mapping-a-type-specific-epitope-by-monoclonal-antibody-against-vp3-protein-of-duck-hepatitis-a-type-1-virus
#19
Xiaoying Wu, Tingting Zhang, Fanyi Meng, Dongchun Guo, Xiuchen Yin, Shaozhou Wulin, Chenxi Li, Qingshan Zhang, Ming Liu, Yun Zhang
Duck hepatitis A subtype 1 virus (DHAV-1) infection causes high mortality in ducklings, resulting in significant losses to duck industries. VP3 is a structural protein of DHAV-1. However, B-cell epitopes on VP3 have not been investigated. To stimulate VP3 antibody response, eukaryotic expression plasmid pCI-neo-VP3 was constructed and used as DNA immunogen to prepare mAbs. Western blot showed that 25.5 kDa VP3 could be detected by mAbs in duck embryo fibroblast (DEF) cells transfected with pCI-neo-VP3. Immunofluorescence assay showed that mAbs could specifically bind to DEF cells infected with DHAV-1...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28882445/strong-influence-of-human-leukocyte-antigen-dp-variants-on-response-to-hepatitis-b-vaccine-in-a-japanese-population
#20
Yuya Okada, Naoki Uno, Shuntaro Sato, Sayaka Mori, Daisuke Sasaki, Norihito Kaku, Kosuke Kosai, Yoshitomo Morinaga, Hiroo Hasegawa, Katsunori Yanagihara
Genome-wide association studies (GWASs) have reported that human leukocyte antigen (HLA) variants are associated with chronic hepatitis B, spontaneous hepatitis B virus (HBV) clearance, and response to hepatitis B vaccine. Single nucleotide polymorphisms (SNPs) in HLA-DP (rs9277535 and rs3077) and HLA-DQ (rs2856718 and rs7453920) have been repeatedly associated with chronic hepatitis B and spontaneous HBV clearance. However, the data on the SNPs associated with response to hepatitis B vaccine are inconclusive...
September 4, 2017: Vaccine
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