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Hepatitis b vaccine

J M Carrascosa, E Del-Alcazar
Biologic drugs have revolutionized the treatment of moderate to severe psoriasis in recent years because of their high efficacy and low risk of toxicity. However, even within the group of biologic therapies, there are differences related to the different mechanisms of action. Areas covered: We review the main adverse events associated with the biologic agents currently available for the treatment of psoriasis and the new inhibitors targeting the p19 subunit of interleukin (IL) 23 and the IL-17A receptor. This review covers injection site reactions, infections, cardiovascular events, demyelinating disorders, tumours, class effects secondary adverse events, immunogenicity, safety in pregnancy and vaccines efficacy...
March 20, 2018: Expert Review of Clinical Immunology
Lindsay Zibrik, Alan Huang, Vivian Wong, Helen Novak Lauscher, Queenie Choo, Eric M Yoshida, Kendall Ho
INTRODUCTION: Chronic hepatitis B (HBV) is prevalent among Asian immigrants in Canada with high morbidity and mortality rates. While some studies have identified barriers to health care and information access, few have studied the impact of culturally relevant information and addressed challenges with recommendations for effective public education and outreach programs. METHODS: Culturally tailored HBV education workshops were delivered over a 12-month period to Chinese, Filipino, Korean and Punjabi immigrants in Lower Mainland, British Columbia (BC)...
March 19, 2018: Journal of Racial and Ethnic Health Disparities
Hiroyuki Kishino, Kenichi Takahashi, Miyuki Sawata, Yoshiyuki Tanaka
Hepatitis B vaccines are highly effective in preventing hepatitis B virus infection and have been included in the national immunization program of Japan since 2016. Heptavax®-II is one of two hepatitis B vaccine products licensed in Japan, and its manufacturing process is being modified to reduce variability of manufacturing and optimize immunogenicity. In this study (NCT01463683), the immunogenicity and safety of a modified-process hepatitis B vaccine (mpHBV) were compared to those of the licensed Heptavax®-II...
March 19, 2018: Human Vaccines & Immunotherapeutics
Olivia Falconer, Marie-Louise Newell, Christine E Jones
The success of prevention of mother to child transmission programs over the last two decades has led to an increasing number of infants who are exposed to human immunodeficiency virus (HIV), but who are not themselves infected (HIV-exposed, uninfected infants). Although the morbidity and mortality among HIV-exposed, uninfected infants is considerably lower than that among HIV-infected infants, they may remain at increased risk of infections in the first 2 years of life compared with their HIV-unexposed peers, especially in the absence of breastfeeding...
2018: Frontiers in Immunology
Li Liu, Di Xiao, Jin-Hong Yu, Rui Shen, Meng Wang, Qiang Li
OBJECTIVES: In China, the epidemic pattern of acute hepatitis E virus (HEV) infection has changed from waterborne outbreaks to foodborne sporadic cases. However, the clinical course of sporadic acute hepatitis E has not been well defined. METHODS: Consecutive AHE inpatients who were admitted to the Jinan Infectious Disease Hospital, Jinan, Shandong Province, between January 2003 and December 2014 were evaluated and followed. Demographic data, clinical manifestations, results of laboratory tests,and outcomes were recorded...
March 15, 2018: International Journal of Infectious Diseases: IJID
Li Zhang, Bingyu Yan, Jingjing Lv, Jiaye Liu, Wenlong Wu, Yi Feng, Aiqiang Xu
Hepatitis B breakthrough infection (HBBI) and its risk factors are rarely reported among adults in China. In 2009-2010 in three townships of China, hepatitis B vaccine (HepB) administration and anti-HBs detection after HepB were conducted among the residents aged 18-59 years. HBsAg, anti-HBs and anti-HBc were detected for these vaccinees in 2013. A total of 252 out of 4701 vaccinees turned to be positive for anti-HBc in 2013, but nobody was positive for HBsAg. The HBBI rate was 5.36% (95% CI 4.73, 6.04). The highest rate was found in age-group of 18-29 years (7...
March 13, 2018: Vaccine
Carlos Fritzsche, M Loebermann, E C Reisinger
BACKGROUND: Vaccination against hepatitis A virus infection is recommended for men who have sex with men and other risk groups. The protection offered by the combined hepatitis A and B vaccine is comparable to that offered by the monovalent hepatitis A vaccine. CASE: A 38-year-old HIV-positive patient presented with right upper abdominal pain, fever and jaundice. Serological work-up and detection of hepatitis A RNA in stool sample revealed an acute hepatitis A infection despite a previous complete vaccination with the combined hepatitis A and B vaccine...
March 14, 2018: Infection
Sascha Suffner, Nadine Gerstenberg, Maria Patra, Paula Ruibal, Ahmed Orabi, Michael Schindler, Volker Bruss
During hepatitis B virus infections subviral particles (SVP) consisting only of viral envelope proteins and lipids are secreted. Heterologous expression of the small envelope protein S in mammalian cells is sufficient for SVP generation. S is synthesized as a transmembrane protein with N-terminal (TM1), central (TM2), and C-terminal (HCR) transmembrane domains. The loops between TM1 and TM2 (CL) and between TM2 and HCR (LL) are located in the cytosol and in the ER lumen, respectively. To define domains of S mediating oligomerization during SVP morphogenesis S mutants were characterized by expression in transiently transfected cells...
March 14, 2018: Journal of Virology
Francelena de Sousa Silva, Yonna Costa Barbosa, Mônica Araújo Batalha, Marizélia Rodrigues Costa Ribeiro, Vanda Maria Ferreira Simões, Maria Dos Remédios Freitas Carvalho Branco, Érika Bárbara Abreu Fonseca Thomaz, Rejane Christine de Sousa Queiroz, Waleska Regina Machado Araújo, Antônio Augusto Moura da Silva
This study estimated the percentages of incomplete immunization with new vaccines and old vaccines and associated factors in children 13 to 35 months of age belonging to a birth cohort in São Luís, the capital of Maranhão State, Brazil. The sample was probabilistic, with 3,076 children born in 2010. Information on vaccination was obtained from the Child's Health Card. The new vaccines, namely those introduced in 2010, were meningococcal C and 10-valent pneumococcal, and the old vaccines, or those already on the childhood immunization schedule, were BCG, hepatitis B, human rotavirus, polio, tetravalent (diphtheria, tetanus, pertussis, Haemophilus influenzae b), yellow fever, and triple viral (measles, mumps, rubella)...
March 12, 2018: Cadernos de Saúde Pública
Nao Nishida, Masaya Sugiyama, Hiromi Sawai, Sohji Nishina, Aiko Sakai, Jun Ohashi, Seik-Soon Khor, Keisuke Kakisaka, Takayo Tsuchiura, Keisuke Hino, Ryo Sumazaki, Yasuhiro Takikawa, Kazumoto Murata, Tatsuo Kanda, Osamu Yokosuka, Katsushi Tokunaga, Masashi Mizokami
Approximately 5-10% of individuals, who are vaccinated with a hepatitis B (HB) vaccine designed based on the HBV genotype C, fail to acquire protective levels of antibodies. Here, host genetic factors behind low immune response to this HB vaccine were investigated by a genome wide association study (GWAS) and HLA association tests. A GWAS and HLA association tests were carried out using a total of 1,193 Japanese individuals including 107 low responders, 351 intermediate responders, and 735 high responders. Classical HLA class II alleles were statistically imputed using the genome-wide SNP typing data...
March 13, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Cynthuja Thilakanathan, Gabrielle Wark, Michael Maley, Scott Davison, Joseph Lawler, Aimei Lee, Nicholas Shackel, Vi Nguyen, Kathy Jackson, Anne Glass, Stephen A Locarnini, Miriam T Levy
BACKGROUND/AIMS: Anti-partum antiviral therapy in the setting of high viral load is recommended to prevent mother-to-child transmission of hepatitis B although recommended viral load cut-offs vary. Quantitative HBsAg has been proposed as an alternative screening strategy to identify high viral load in this setting. Guidelines suggest testing all infants for vaccine response and infection. We set out to re-examine viral load cut-offs; the predictive value of quantitative HBsAg and the need for follow-up infant testing in our cohort...
March 12, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
Daniel Enosi Tuipulotu, Natalie E Netzler, Jennifer H Lun, Jason M Mackenzie, Peter A White
Norovirus infections are a significant health and economic burden globally, accounting for hundreds of millions of cases of acute gastroenteritis every year. In the absence of an approved norovirus vaccine, there is an urgent need to develop antivirals to treat chronic infections, and provide prophylactic therapy to limit viral spread during epidemics and pandemics. Toll-like receptor (TLR) agonists have been explored widely for their antiviral potential and several are progressing through clinical trials for the treatment of human immunodeficiency virus (HIV), hepatitis B virus (HBV) and as adjuvants for norovirus virus-like particle (VLP) vaccines...
March 12, 2018: Antimicrobial Agents and Chemotherapy
Wolfgang Miehsler, Clemens Dejaco, Hans-Peter Gröchenig, Harry Fuchssteiner, Christoph Högenauer, Lili Kazemi-Shirazi, Harald Maier, Andreas Mayer, Alexander Moschen, Walter Reinisch, Wolfgang Petritsch, Reingard Platzer, Pius Steiner, Herbert Tilg, Harald Vogelsang, Heimo Wenzl, Gottfried Novacek
Anti-TNFα-antibodies have revolutionized the therapy of inflammatory bowel diseases and other immune-mediated inflammatory diseases. Due to the increasing application of these substances, the Working Group of Inflammatory Bowel Diseases of the Austrian Association of Gastroenterology and Hepatology intended to update their consensus report on the safe use of Infliximab (published in 2010) and to enlarge its scope to cover all anti-TNFα-antibodies. The present consensus report summarizes the current evidence on the safe use of anti-TNFα-antibodies and covers the following topics: general risk of infection, bacterial infections (i...
March 2018: Zeitschrift Für Gastroenterologie
Robert Hecht, Lindsey Hiebert, Wendy C Spearman, Mark W Sonderup, Teresa Guthrie, Timothy B Hallett, Shevanthi Nayagam, Homie Razavi, Shan Soe-Lin, Kgomotso Vilakazi-Nhlapo, Yogan Pillay, Stephen Resch
Even though WHO has approved global goals for hepatitis elimination, most countries have yet to establish programs for hepatitis B and C, which account for 320 million infections and over a million deaths annually. One reason for this slow response is the paucity of robust, compelling analyses showing that national HBV/HCV programs could have a significant impact on these epidemics and save lives in a cost-effective, affordable manner. In this context, our team used an investment case approach to develop a national hepatitis action plan for South Africa, grounded in a process of intensive engagement of local stakeholders...
February 26, 2018: Health Policy and Planning
Wadad Yazji, Wafaa Habal, Fawza Menem
This cross-sectional study estimates HBV prevalence and evaluates vaccination efficiency among multitransfused patients. 159 patients with various hemoglobinopathies were tested for HBsAg, anti-HBs, and anti-HBc, using enzyme-linked immunosorbent assay (ELISA). The serological results were then compared with the relevant documentation in medical records. Seropositivity of HBV was detected in 1/8 of recruited patients. Serological immunity was found in only half of patients, while the other half were either infected or non-immune...
March 5, 2018: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
Varun Chauhan, Mini P Singh, Radha K Ratho
Hepatitis C virus (HCV) infects almost 150 million people and is a leading cause of liver disease worldwide. It has been classified into seven genotypes; the most common genotype affecting Indian population is genotype 3 (60-70%). Currently there is no vaccine for any genotype of HCV. In order to develop peptide based vaccine against HCV, it is important to identify the conservancy in the circulating genotypes, along with the Human Leucocyte Antigen (HLA) alleles in the target population. The present study aims to identify conserved CD4 and CD8 T cells and B cell epitopes against Indian HCV-genotype-3a using an in silico analysis...
March 5, 2018: Biologicals: Journal of the International Association of Biological Standardization
Abdul Momin Kazi, Murtaza Ali, Khurram Zubair, Hussain Kalimuddin, Abdul Nafey Kazi, Saleem Perwaiz Iqbal, Jean-Paul Collet, Syed Asad Ali
BACKGROUND: Improved routine immunization (RI) coverage is recommended as the priority public health strategy to decrease vaccine-preventable diseases and eradicate polio in Pakistan and worldwide. OBJECTIVE: The objective of this study was to ascertain whether customized, automated, one-way text messaging (short message service, SMS) reminders delivered to caregivers via mobile phones when a child is due for an RI visit can improve vaccination uptake and timelines in Pakistan...
March 7, 2018: JMIR Public Health and Surveillance
Gonzague Jourdain, Nicole Ngo-Giang-Huong, Linda Harrison, Luc Decker, Woottichai Khamduang, Camlin Tierney, Nicolas Salvadori, Tim R Cressey, Wasna Sirirungsi, Jullapong Achalapong, Prapap Yuthavisuthi, Prateep Kanjanavikai, Orada P Na Ayudhaya, Thitiporn Siriwachirachai, Sinart Prommas, Prapan Sabsanong, Aram Limtrakul, Supang Varadisai, Chaiwat Putiyanun, Pornnapa Suriyachai, Prateung Liampongsabuddhi, Suraphan Sangsawang, Wanmanee Matanasarawut, Sudanee Buranabanjasatean, Pichit Puernngooluerm, Chureeratana Bowonwatanuwong, Thanyawee Puthanakit, Virat Klinbuayaem, Satawat Thongsawat, Sombat Thanprasertsuk, George K Siberry, Diane H Watts, Nahida Chakhtoura, Trudy V Murphy, Noele P Nelson, Raymond T Chung, Stanislas Pol, Nantasak Chotivanich
BACKGROUND: Pregnant women with an elevated viral load of hepatitis B virus (HBV) have a risk of transmitting infection to their infants, despite the infants' receiving hepatitis B immune globulin. METHODS: In this multicenter, double-blind clinical trial performed in Thailand, we randomly assigned hepatitis B e antigen (HBeAg)-positive pregnant women with an alanine aminotransferase level of 60 IU or less per liter to receive tenofovir disoproxil fumarate (TDF) or placebo from 28 weeks of gestation to 2 months post partum...
March 8, 2018: New England Journal of Medicine
Allison J Kwong, Matthew S Chang, Ruth E Tuomala, Laura E Riley, Julian N Robinson, Muthoka L Mutinga, Karin L Andersson, Robert S Brown, Emily Oken, Chinweike Ukomadu, Anna E Rutherford
Objectives Hepatitis B (HBV) remains a significant public health burden, despite effective therapy. Routine HBV screening is recommended during pregnancy to reduce the risk of vertical transmission, but the rates of follow-up care peri-partum are low. The aim of this study was to evaluate physician practices and knowledge regarding HBV in women diagnosed perinatally. Methods A survey was distributed to obstetricians and midwives within the Partners HealthCare system at Brigham and Women's Hospital and Massachusetts General Hospital...
March 6, 2018: Maternal and Child Health Journal
Wei-Na Guo, Bin Zhu, Ling Ai, Dong-Liang Yang, Bao-Ju Wang
Even with an effective vaccine, an estimated 240 million people are chronically infected with hepatitis B virus (HBV) worldwide. Current antiviral therapies, including interferon and nucleot(s)ide analogues, rarely cure chronic hepatitis B. Animal models are very crucial for understanding the pathogenesis of chronic hepatitis B and developing new therapeutic drugs or strategies. HBV can only infect humans and chimpanzees, with the use of chimpanzees in HBV research strongly restricted. Thus, most advances in HBV research have been gained using mouse models with HBV replication or infection or models with HBV-related hepadnaviral infection...
January 18, 2018: Zoological Research
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