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https://www.readbyqxmd.com/read/28231679/-use-the-markov-decision-tree-model-to-optimize-vaccination-strategies-of-hepatitis-e-among-women-aged-15-to-49
#1
Z M Chen, S B Ji, X L Shi, Y Y Zhao, X F Zhang, H Jin
Objective: To evaluate the cost-utility of different hepatitis E vaccination strategies in women aged 15 to 49. Methods: The Markov-decision tree model was constructed to evaluate the cost-utility of three hepatitis E virus vaccination strategies. Parameters of the models were estimated on the basis of published studies and experience of experts. Both methods on sensitivity and threshold analysis were used to evaluate the uncertainties of the model. Results: Compared with non-vaccination group, strategy on post-screening vaccination with rate as 100%, could save 0...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28228493/hepatitis-e-virus-detection-and-quantification-by-an-rt-qpcr-assay-calibrated-to-the-world-health-organization-standard-for-hev-rna
#2
Jeffrey J Germer, Irina Ankoudinova, Yevgeniy S Belousov, Walt Mahoney, Chen Dong, Jihong Meng, Jayawant N Mandrekar, Joseph D Yao
Hepatitis E virus (HEV) has emerged as a cause of chronic hepatitis among immunocompromised patients. Molecular assays have become important tools for the diagnosis and management of these chronically-infected patients. A reverse transcription, real-time PCR (RT-qPCR) assay utilizing Pleiades probe chemistry and an RNA internal control for simultaneous detection and quantification of HEV RNA in human serum was developed based on adaptation of a previously described and broadly reactive primer set targeting the overlapping open reading frame (ORF) 2/3 nucleotide sequence of HEV...
February 22, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28216965/mutational-analysis-of-hepatitis-e-virus-orf1-y-domain-effects-on-rna-replication-and-virion-infectivity
#3
Mohammad Khalid Parvez
AIM: To investigate the role of non-structural open reading frame 1 "Y-domain" sequences in the hepatitis E virus (HEV) life cycle. METHODS: Sequences of human HEV Y-domain (amino acid sequences 216-442) and closely-related viruses were analyzed in silico. Site-directed mutagenesis of the Y-domain (HEV SAR55) was carried out and studied in the replicon-baculovirus-hepatoma cell model. In vitro transcribed mRNA (pSK-GFP) constructs were transfected into S10-3 cells and viral RNA replicating GFP-positive cells were scored by flow cytometry...
January 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28209837/genome-sequence-of-a-genotype-2-hepatitis-e-virus-world-health-organization-reference-strain
#4
Marco Kaiser, Saleem Kamili, Tonya Hayden, Johannes Blümel, Sally A Baylis
We report here the sequence of a genotype 2a reference strain of hepatitis E virus (HEV), developed on behalf of the World Health Organization. The HEV reference strain is intended for use in assays based on nucleic acid amplification for the validation of HEV RNA detection.
February 16, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28208856/seroprevalence-of-common-viral-diseases-a-hospital-based-study-from-amritsar-india
#5
Kanwardeep Singh, Shailpreet K Sidhu, Pushpa Devi, Manpreet Kaur, Maninder Kaur, Nachhatarjit Singh
INTRODUCTION: There is a paucity of published data on epidemiology of the viral infections in Punjab, India. The Viral Research and Diagnostic Laboratory (VRDL) located at Government Medical College (GMC), Amritsar conducts the initial diagnosis of common viruses circulating in the region. AIM: To report the seroprevalence of various viral diseases in Amritsar and neighboring districts of Punjab along with the demographic and geographical data of the patients. MATERIALS AND METHODS: Whole blood sera samples from a total of 5781 patients suspected of various viral diseases (chikungunya, dengue, hepatitis A, hepatitis B, hepatitis C, hepatitis E, herpes simplex-1 or herpes simplex-2) were received at VRDL, GMC, Amritsar from January 2015 to April 2016 and a cross sectional study was conducted...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28205112/autochthonous-sporadic-acute-hepatitis-e-caused-by-two-distinct-subgenotype-3b-hepatitis-e-virus-strains-with-only-90-nucleotide-identity
#6
Yasuko Yamaguchi, Hitoshi Takagi, Yuhei Suzuki, Kyoko Maruhashi, Takashi Kosone, Satoru Kakizaki, Ken Sato, Masanobu Yamada, Shigeo Nagashima, Masaharu Takahashi, Hiroaki Okamoto
Hepatitis E, which is caused by hepatitis E virus (HEV), is a public health concern in Japan, where the zoonotic food-borne transmission of HEV from domestic pigs and wild boars plays an important role. A 44-year-old Japanese man with autochthonous sporadic acute hepatitis E was admitted with general fatigue and moderate liver dysfunction. In the present study, two distinct HEV strains were recovered from the patient, who had consumed the raw or undercooked pig liver and intestine two or three times per week for 3 months before the disease onset...
February 15, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28205052/a-novel-subgenotype-3a-hepatitis-e-virus-isolated-from-pigs-in-china
#7
Yufeng Cao, Lisai Zhu, Dan Liu, Changming Guo, Yue Yuan, Chengbo Shi, Zhaohui Liu, Xinping Wang
Hepatitis E virus (HEV) infection is an emerging disease with zoonotic transmission that represents a serious public health concern, especially in developing countries. Here we characterize a novel HEV strain CCST-517, which possesses a complete genome sequence of 7284 bp with typical HEV genome organization including 5' and 3' non-coding regions and three open reading frames. The sequence identities of CCST-517 with known HEV genotype 1, 2, 3, and 4 were 73.4-73.7, 73.2, 80.4-90.4, and 75.1-75.7%, respectively...
February 15, 2017: Virus Genes
https://www.readbyqxmd.com/read/28202801/molecular-epidemiology-and-strain-comparison-between-hepatitis-e-virus-in-human-sera-and-pig-livers-during-2014-2016-in-hong-kong
#8
Martin C W Chan, Kirsty Kwok, Tin-Nok Hung, Paul K S Chan
Hepatitis E virus (HEV) causes substantial morbidity and mortality in developing countries and is considered an emerging food-borne pathogen in previously non-endemic developed countries. To investigate genetic association between human HEV infection and HEV-contaminated high-risk food in Hong Kong, we compared local virus strains obtained from hepatitis E patient sera with those surveyed from high-risk food items during 2014-2016. Twenty-four cases of laboratory-confirmed human HEV infections were identified from January 2014 to March 2016 in our hospitals...
February 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28202767/genotype-specific-evolution-of-hepatitis-e-virus
#9
Adam B Brayne, Bethany L Dearlove, James S Lester, Sergei L Kosakovsky Pond, Simon D W Frost
Hepatitis E virus (HEV) is the most common cause of acute viral hepatitis globally. HEV comprises four genotypes with different geographic distributions and host ranges. We utilise this natural case-control study for investigating the evolution of zoonotic viruses compared to single host viruses, using 244 near full length HEV genomes. Genome wide estimates of dN/dS located a region of overlapping reading frames, which is subject to positive selection in genotypes 3 and 4. The open reading frames (ORFs) involved have functions related to host-pathogen interaction, so genotype specific evolution of these regions may reflect their fitness...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28199701/hepatitis-e-virus-infects-neurons-and-brains
#10
Xinying Zhou, Fen Huang, Lei Xu, Zhanmin Lin, Femke M S de Vrij, Ane C Ayo-Martin, Mark van der Kroeg, Manzhi Zhao, Yuebang Yin, Wenshi Wang, Wanlu Cao, Yijin Wang, Steven A Kushner, Jean Marie Peron, Laurent Alric, Robert A de Man, Bart C Jacobs, Jeroen J van Eijk, Eleonora M A Aronica, Dave Sprengers, Herold J Metselaar, Chris I de Zeeuw, Harry R Dalton, Nassim Kamar, Maikel P Peppelenbosch, Qiuwei Pan
No abstract text is available yet for this article.
February 11, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28197973/assessment-and-evaluation-of-an-integrated-hybrid-anaerobic-aerobic-sewage-treatment-system-for-the-removal-of-enteric-viruses
#11
Waled Morsy El-Senousy, Sohair Imam Abou-Elela
The capability of a cost-effective and a small size decentralized pilot wastewater treatment plant (WWTP) to remove enteric viruses such as rotavirus, norovirus genogroup I (GGI), norovirus genogroup II (GGII), Hepatitis E virus (HEV), and adenovirus was studied. This pilot plant is an integrated hybrid anaerobic/aerobic setup which consisted of anaerobic sludge blanket (UASB), biological aerated filter (BAF), and inclined plate settler (IPS). Both the UASB and BAF are packed with a non-woven polyester fabric (NWPF)...
February 14, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28197972/prevalence-and-molecular-characterization-of-the-hepatitis-e-virus-in-retail-pork-products-marketed-in-canada
#12
Oksana Mykytczuk, Jennifer Harlow, Sabah Bidawid, Nathalie Corneau, Neda Nasheri
Infection with the hepatitis E virus (HEV) is very common worldwide. HEV causes acute viral hepatitis with approximately 20 million cases per year. While HEV genotypes 1 and 2 cause large waterborne and foodborne outbreaks with a significant mortality in developing countries, genotypes 3 and 4 are more prevalent in developed countries with transmission being mostly zoonotic. In North America and Europe, HEV has been increasingly detected in swine, and exposure to pigs and pork products is considered to be the primary source of infection...
February 14, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28195391/rig-i-is-a-key-antiviral-interferon-stimulated-gene-against-hepatitis-e-virus-dispensable-of-interferon-production
#13
Lei Xu, Wenshi Wang, Yunlong Li, Xinying Zhou, Yuebang Yin, Yijin Wang, Robert A de Man, Luc J W van der Laan, Fen Huang, Nassim Kamar, Maikel P Peppelenbosch, Qiuwei Pan
: Interferons (IFNs) are broad antiviral cytokines that exert their function by inducing the transcription of hundreds of interferon-stimulated genes (ISGs). However, little is known about the antiviral potential of these cellular effectors on hepatitis E virus (HEV) infection, the leading cause of acute hepatitis globally. In this study, we profiled the antiviral potential of a panel of important human ISGs on HEV replication in cell culture models by overexpression of individual ISG...
February 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28194857/hepatitis-e-risks-pigs-or-blood-that-is-the-question
#14
Richard S Tedder, Samreen Ijaz, Alan Kitchen, Ines Ushiro-Lumb, Kate I Tettmar, Patricia Hewitt, Nick Andrews
BACKGROUND: Infection with hepatitis E virus (HEV) Genotype 3 is recognized as a food-borne zoonosis in developed countries where it usually causes a mild self-limited acute hepatitis. It may cause a persistent infection in the immunosuppressed human that can progress to cirrhosis. To protect the patient from transfusion-acquired HEV infection, steps have been taken in the United Kingdom to provide for at-risk patients only components from donors screened for HEV viremia. This strategy does not protect from dietary exposure and calls into question estimation of relative risk between blood transfusion and diet...
February 2017: Transfusion
https://www.readbyqxmd.com/read/28194856/the-association-of-elevated-alanine-aminotransferase-levels-with-hepatitis-e-virus-infections-among-blood-donors-in-china
#15
Meiyu Wang, Miao He, Binting Wu, Ling Ke, Tingting Han, Jingxing Wang, Hua Shan, Paul Ness, Nan Guo, Yu Liu, Kenrad E Nelson
BACKGROUND: Transfusion transmission of hepatitis E virus (HEV) is an emerging health risk, yet blood donors are rarely screened for this pathogen. Many blood centers instituted screening of blood donors for elevated levels of alanine aminotransferase (ALT) levels to prevent hepatitis C virus, which has continued in China. We evaluated whether elevated ALT levels were associated with HEV among blood donors in China. STUDY DESIGN AND METHODS: Blood samples were collected from 9069 qualified volunteer blood donors from four blood centers in China...
February 2017: Transfusion
https://www.readbyqxmd.com/read/28191016/incidence-and-molecular-characterization-of-hepatitis-e-virus-from-swine-in-eastern-cape-south-africa
#16
Olusesan Adeyemi Adelabu, Benson Chuks Iweriebor, U U Nwodo, Larry Chikwelu Obi, Anthony Ifeanyi Okoh
Hepatitis E virus-mediated infection is a serious public health concern in economically developing nations of the world. Globally, four major genotypes of HEV have been documented. Hepatitis E has been suggested to be zoonotic owing to the increase of evidence through various studies. Thus far, this paper reports on prevalence of hepatitis E virus among swine herd in selected communal and commercial farms in the Eastern Cape Province of South Africa. A total of 160 faecal samples were collected from swine herds in Amathole and Chris Hani District Municipalities of Eastern Cape Province for the presence of HEV...
2017: Advances in Virology
https://www.readbyqxmd.com/read/28182613/news-on-viral-hepatitis-in-hiv-update-from-the-2016-gehep-conference
#17
Eva Poveda, Massimo Puoti, Miguel García-Deltoro, Juan A Pineda, Francisco Téllez, Rafael Granados, Luis Morano, Federico García
The II Conference of the Group for the Study of Viral Hepatitis (GEHEP) (29 September-1 October, Spain) updated epidemiological, diagnostic and treatment aspects on viral hepatitis. The conference was mostly focused on the latest news related to HCV infection, including the successes achieved since the implementation of direct-acting antiviral agents for HCV therapy, but also in the new, future challenges for a real HCV eradication. The scenario for chronic HCV infection has dramatically changed in the last two years and most patients have been cured after 12 weeks of therapy with minimal side effects...
January 2017: AIDS Reviews
https://www.readbyqxmd.com/read/28182318/molecular-and-structural-changes-related-to-hepatitis-e-virus-hev-antigen-and-its-expression-in-testis-inducing-apoptosis-in-mongolian-gerbil-model
#18
Majid Hussain Soomro, Ruihan Shi, Ruiping She, Yifei Yang, Tongtong Wang, Qiaoxing Wu, Heng Li, Wenzhuo Hao
Hepatitis E virus (HEV) infection has been associated with a wide range of extrahepatic manifestations, so this study was designed to examine the effect and role of HEV on structural and molecular changes in the testicular tissues of Mongolian gerbils experimentally infected with swine HEV. HEV RNA was first detected in testis at 14 day post inoculation and reached a peak between 28 to 42 days later with viral load between 3.12 logs g-¹ to 6.23 logs g-¹ by PCR assays. Microscopic changes showed vacuolation, sloughing of germ cells, formation of multinuclear giant cells, degeneration, necrosis of tubules and damaged blood-testis barrier was observed through transmission electron microscopy...
February 9, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28182129/a-case-of-acute-hepatitis-e-infection-in-a-patient-with-non-hodgkin-lymphoma-treated-successfully-with-ribavirin
#19
Hasan N Y Haboubi, Rizwan Diyar, Ann Benton, Chin Lye Ch'ng
We present the case of a man who, following immunosuppressive treatment for non-Hodgkin lymphoma, became infected with viral hepatitis E. Acute hepatitis E virus infection should be considered in patients with deranged liver function on a background of haematological malignancies or immunosuppression, even without travel to endemic regions. Whilst clearance is usually spontaneous in immune-competent individuals, these at-risk groups may develop a more complicated and protracted disease course. Thus awareness is important as additional treatment with ribavirin or pegylated interferon may be required, as in this case, in order to help achieve eradication...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28177289/hepatitis-e-virus-in-bottlenose-dolphins-tursiops-truncatus
#20
María Caridad Montalvo Villalba, Danilo Cruz Martínez, Imran Ahmad, Licel A Rodriguez Lay, Marite Bello Corredor, Celia Guevara March, Liena Sánchez Martínez, Laima Sánchez Martínez-Campo, Shahid Jameel
Hepatitis E virus (HEV) infects several animal species that act as zoonotic reservoirs for viral transmission. Solid and liquid residues from infected animals could lead to HEV contamination of food and surface waters. Evidence of human HEV infection through ingestion of seafood (shellfish, mussels) has been reported. Dolphins generally feed on fish and squid but are able to adapt to an environment and consume whatever prey is available. Clinical signs of infected dolphins include lethargy, inappetence, behavioral aberrations and increased serum alanine aminotransferase (ALT)...
February 8, 2017: Diseases of Aquatic Organisms
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