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https://www.readbyqxmd.com/read/28545558/from-the-epidemiology-of-hepatitis-e-virus-hev-within-the-swine-reservoir-to-public-health-risk-mitigation-strategies-a-comprehensive-review
#1
REVIEW
Morgane Salines, Mathieu Andraud, Nicolas Rose
Hepatitis E virus (HEV) is the causative agent of hepatitis E in humans, an emerging zoonosis mainly transmitted via food in developed countries and for which domestic pigs are recognised as the main reservoir. It therefore appears important to understand the features and drivers of HEV infection dynamics on pig farms in order to implement HEV surveillance programmes and to assess and manage public health risks. The authors have reviewed the international scientific literature on the epidemiological characteristics of HEV in swine populations...
May 25, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28543644/detection-of-viral-hepatitis-e-in-clinical-liver-biopsies
#2
Sandrine Prost, Claire L Crossan, Harry R Dalton, Robert A De Man, Nassim Kamar, Janick Selves, Catharine Dhaliwal, Linda Scobie, Christopher O C Bellamy
AIMS: to determine the relative utility of in situ testing for hepatitis E virus (HEV) RNA and paraffin section PCR to diagnose HEV infection in paraffin-embedded clinical liver biopsies, and to correlate with clinico-pathological characteristics. METHODS AND RESULTS: We evaluated in situ and quantitative PCR (qPCR)-based approaches to identifying HEV in clinical liver biopsies from infected patients from multiple centers, correlating with clinical setting (immunocompetent, allograft or immunosuppressed native liver) and histologic findings...
May 24, 2017: Histopathology
https://www.readbyqxmd.com/read/28538705/uk-pigs-at-the-time-of-slaughter-investigation-into-the-correlation-of-infection-with-prrsv-and-hev
#3
Jean-Pierre Frossard, Sylvia Grierson, Tanya Cheney, Falko Steinbach, Bhudipa Choudhury, Susanna Williamson
Hepatitis E virus (HEV) and porcine reproductive and respiratory syndrome virus (PRRSV) and are both globally prevalent in the pig population. While HEV does not cause clinical disease in pigs, its zoonotic potential has raised concerns in the food safety sector. PRRS has become endemic in the United Kingdom (UK) since its introduction in 1991, and continues to cause considerable economic losses to the swine industry. A better understanding of the current prevalence and diversity of PRRSV and HEV in the UK, and their potential association, is needed to assess risks and target control measures appropriately...
May 24, 2017: Viruses
https://www.readbyqxmd.com/read/28528763/evaluation-of-recombinant-chinese-avian-hepatitis-e-virus-cahev-orf2-and-orf3-proteins-for-protection-of-chickens-against-cahev-infection
#4
Shahid Faraz Syed, Yani Sun, Taofeng Du, Yiyang Chen, Baoyuan Liu, Xinjie Wang, Huixia Li, Yuchen Nan, En-Min Zhou, Qin Zhao
Avian hepatitis E virus (HEV) is the etiologic agent of big liver and spleen disease in chickens. In 2010, the Chinese avian HEV (CaHEV) strain was isolated from chickens and demonstrated to cause the decreased egg production in layer hens. No avian HEV commercial vaccine has yet been developed to prevent virus infection in China. In this study, recombinant CaHEV truncated ORF2 and complete ORF3 proteins were evaluated separately for immunoprotection of chickens against CaHEV infection. First, truncated ORF2 and complete ORF3 proteins were expressed in Escherichia coli...
May 18, 2017: Vaccine
https://www.readbyqxmd.com/read/28523520/hepatitis-e-virus-serology-and-pcr-does-the-methodology-matter
#5
Lien Cattoir, Frederik Van Hoecke, Tom Van Maerken, Eveline Nys, Inge Ryckaert, Matthias De Boulle, Anja Geerts, Xavier Verhelst, Isabelle Colle, Veronik Hutse, Vanessa Suin, Magali Wautier, Steven Van Gucht, Hans Van Vlierberghe, Elizaveta Padalko
Hepatitis E virus (HEV) genotype 3 is an emerging pathogen in the developed world. As the clinical manifestations and routine laboratory parameters are often nonspecific, accurate diagnostic tests are crucial. In the current study, the performance of six serological assays and three PCR assays for the detection of HEV was evaluated. In the setting of the Ghent University Hospital, patients with clinically suspected HEV infection were tested for the presence of HEV IgM and IgG as well as HEV RNA. Serology was performed using six commercial HEV ELISA assays: Biorex, Wantai and Mikrogen IgM and IgG...
May 18, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28522709/identification-of-a-novel-hepatitis-e-virus-genotype-3-strain-isolated-from-a-chronic-hepatitis-e-virus-infection-in-a-kidney-transplant-recipient-in-switzerland
#6
Bo Wang, Dominik Harms, Jörg Hofmann, Diana Ciardo, Agnes Kneubühl, C-Thomas Bock
Hepatitis E virus genotype 3 (HEV-3) is the causal pathogen of chronic hepatitis E. We report here the full-length genome sequence of an HEV-3 strain, isolated from a kidney transplant recipient in Switzerland (SW/16-0282). This HEV-3 strain showed less than 88% homology compared to known strains, suggesting a new HEV-3 strain.
May 18, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28520759/first-evidence-of-the-hepatitis-e-virus-in-environmental-waters-in-colombia
#7
Paula A Baez, Maria Camila Lopez, Alejandra Duque-Jaramillo, Dioselina Pelaez, Francisco Molina, Maria-Cristina Navas
Hepatitis E virus (HEV) is one of the main causes of acute viral hepatitis of enteric transmission. HEV has been detected in environmental samples in several countries from Europe and Asia, constituting a risk factor for waterborne infection. In Colombia, HEV has been identified in samples obtained from patients as well as from swine, but no environmental studies have been carried out. To determine if HEV is present in environmental waters, samples from the main source of drinking water plant and of wastewater system of eight municipalities and two villages of Antioquia state (North West Colombia), were collected between December 2012 and April 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28506371/hepatitis-e-virus-and-the-liver-clinical-settings-and-liver-pathology
#8
REVIEW
Daniela Lenggenhager, Achim Weber
Infection with hepatitis E virus (HEV) is a leading cause of acute hepatitis worldwide, now increasingly recognized also in nonendemic regions. Clinical manifestation of hepatitis E includes mostly asymptomatic/subclinical presentations or acute, self-limiting hepatitis, but also potentially fatal liver failure or chronic hepatitis in immunocompromised individuals. Accordingly, hepatitis E histolpathologic patterns range from an unremarkable histology over acute (cholestatic) hepatitis with variable degree of necrosis to chronic hepatitis with fibrosis...
June 2017: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/28497542/molecular-detection-and-phylogenetic-analysis-of-hepatitis-e-virus-strains-circulating-in-wild-boars-in-south-central-italy
#9
G Aprea, M G Amoroso, I Di Bartolo, N D'Alessio, D Di Sabatino, A Boni, B Cioffi, D D'Angelantonio, S Scattolini, L De Sabato, G Cotturone, F Pomilio, G Migliorati, G Galiero, G Fusco
Hepatitis E virus (HEV) is a zoonotic pathogen with a worldwide distribution, and infects several mammalian species, including pigs and wild boars, which are recognized as its natural reservoirs. The virus causes a usually self-limiting liver disease with a mortality rate generally below 1%, although mortality rates of 15%-25% have been recorded in pregnant woman. Chronic infections can also occur. The prevalence of HEV has been extensively studied in wild boars and pigs in northern Italy, where intensive pig herds are predominantly located...
May 11, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28492419/seroprevalence-of-antibodies-and-antigens-against-hepatitis-a-e-viruses-in-refugees-and-asylum-seekers-in-germany-in-2015
#10
Alexandra Jablonka, Philipp Solbach, Michael Wöbse, Michael P Manns, Reinhold E Schmidt, Heiner Wedemeyer, Markus Cornberg, Georg M N Behrens, Svenja Hardtke
BACKGROUND: Migration because of miscellaneous political crises in countries in the Middle East and Africa is a global challenge for whole Europe from an economic, social, and public health view. There is an urgent need to generate comprehensive, evidence-based data to expedite further screening and vaccination strategies. METHODS: A total of 604 individuals ranging in age from 2 to 68 years who enrolled at a single reception center were tested for the prevalence of serologic markers for hepatitis virus types A, B, C, D, and E (HAV, HBV, HCV, HDV, HEV), respectively...
May 10, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28486512/in-house-elisa-based-on-recombinant-orf2-protein-underline-high-prevalence-of-igg-anti-hepatitis-e-virus-amongst-blood-donors-in-south-brazil
#11
Rafael Pandolfi, Denise Ramos de Almeida, Marcelo Alves Pinto, Luiz Carlos Kreutz, Rafael Frandoloso
Hepatitis E Virus (HEV) is a zoonotic pathogen responsible for causing acute hepatitis in human, especially in developing countries. Diagnosis of HEV usually relies on the detection of antibodies mostly by enzyme-linked immunosorbent assay (ELISA). In the present study, we designed a new indirect ELISA (iELISA) based on a short recombinant peptide derived from the capsid protein (ORF2p) and demonstrated its potential for detecting human IgG against HEV genotype 3. The best polystyrene plate (Maxisorp®), optimal ORF2p coating antigen concentration (0,67μg/well) and primary antibody dilution (1:100) were determined...
2017: PloS One
https://www.readbyqxmd.com/read/28483690/characterization-of-the-lipid-envelope-of-exosome-encapsulated-hev-particles-protected-from-the-immune-response
#12
Sabine Chapuy-Regaud, Martine Dubois, Célia Plisson-Chastang, Tiffany Bonnefois, Sébastien Lhomme, Justine Bertrand-Michel, Bruno You, Steve Simoneau, Pierre-Emmanuel Gleizes, Benoît Flan, Florence Abravanel, Jacques Izopet
The hepatitis E virus (HEV) is the most common cause of acute hepatitis worldwide. Although HEV is a small, naked RNA virus, HEV particles become associated with lipids in the blood of infected patients and in the supernatant of culture systems. The egress of these particles from cells implies the exocytosis pathway but the question of the role of the resulting HEV RNA containing exosomes and the nature of the lipids they contain has not been fully addressed. We determined the lipid proportions of exosomes from uninfected and HEV-infected cells and their role in HEV spreading...
May 5, 2017: Biochimie
https://www.readbyqxmd.com/read/28480969/epidemiological-and-genetic-analysis-concerning-the-non-enterovirus-71-and-non-coxsackievirus-a16-causative-agents-related-to-hand-foot-and-mouth-disease-in-anyang-city-henan-province-china-from-2011-to-2015
#13
Yang Li, Honghong Bao, Xiangping Zhang, Mingqiang Zhai, Xiaobing Bao, Demin Wang, Shuanhu Zhang
Enterovirus 71 (EV-A71) and coxsackievirus A16 (CV-A16) are major pathogens of hand, foot and mouth disease (HFMD) and have been associated with consecutive outbreaks of HFMD in China over the past years. Although several other human enteroviruses (HEVs) have also acted as causative agents of HFMD, published information on their roles in the prevalence of HFMD is limited. This study was conducted to reveal the characteristics of the pathogenic spectrum and molecular epidemiology of the non-EV-71 and non-CV-A16 HEVs in Anyang City, which is located in north-central China and has a population of 5 million...
May 8, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28472617/seroprevalence-and-risk-factors-associated-with-hepatitis-e-virus-infections-among-people-and-pigs-in-tibet-china
#14
Lihong Zhang, Kun Li, Shucheng Huang, Dongyu Liu, Mujeeb Ur Rehman, Yanfang Lan, Hui Zhang, Lei Wang, Yanan Hao, Muhammad Kashif Iqbal, Khalid Mehmood, Yangczom Chamba, Jiakui Li
Hepatitis E virus (HEV), the causative agent of hepatitis E, is an important public health problem throughout the world. There is little information available on the autochthonous HEV infection in highland inhabitants (Tibet, average elevation >3000m) of China. Therefore, we conducted a cross-sectional survey to determine the sero-prevalence of Hepatitis E and association of different risk factors in local people and pigs in Tibet, China. For this purpose, serum samples were collected from 600 local volunteers and 453 Tibetan pigs from July 2014 to August 2015...
May 1, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28470590/challenges-considering-the-degradation-of-cell-components-in-commercial-lithium-ion-cells-a-review-and-evaluation-of-present-systems
#15
REVIEW
Karin Kleiner, Helmut Ehrenberg
Owing to the high energy and power density of lithium-ion cells (1200 Wh kg(-1) and 200 Wh kg(-1)) and due to their compact design, they are used as energy storage devices in many contemporary mobile applications such as telecommunication systems, notebooks and domestic appliances. Meanwhile their application is not limited only to consumer electronics, they are also standard in hybrid electric (HEVs) and electric vehicles (EVs). However, the profitable application of lithium-ion cells in the automobile industry requires lower costs, lower safety risks, a higher specific energy density and a longer lifetime under everyday conditions...
June 2017: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/28470455/potential-approaches-to-assess-the-infectivity-of-hepatitis-e-virus-in-pork-products-a-review
#16
REVIEW
Nigel Cook, Martin D'Agostino, Reimar Johne
The zoonotic transmission of hepatitis E, caused by the hepatitis E virus (HEV), is an emerging issue. HEV appears common in pigs (although infected pigs do not show clinical signs), and evidence suggests that a number of hepatitis E cases have been associated with the consumption of undercooked pork meat and products. Little information is available on whether cooking can eliminate HEV, since there is currently no robust method for measuring its infectivity. HEV infectivity can be clearly demonstrated by monitoring for signs of infection (e...
May 3, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28468881/mutations-in-the-transmembrane-domain-and-cytoplasmic-tail-of-hendra-virus-fusion-protein-disrupt-virus-like-particle-assembly
#17
Nicolás Cifuentes-Muñoz, Weina Sun, Greeshma Ray, Phuong Tieu Schmitt, Stacy Webb, Kathleen Gibson, Rebecca Ellis Dutch, Anthony P Schmitt
Hendra virus (HeV) is a zoonotic paramyxovirus that causes deadly illness in horses and humans. An intriguing feature of HeV is the utilization of endosomal protease for activation of the viral fusion protein (F). Here, we investigated how F endosomal trafficking impacts HeV assembly. We found that HeV matrix (M) and F proteins each induced particle release when expressed alone, but their co-expression led to coordinated assembly of virus-like particles (VLPs) that were morphologically and physically distinct from M-alone or F-alone VLPs...
May 3, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28466048/first-report-of-hepatitis-e-virus-viremia-in-healthy-blood-donors-from-nepal
#18
Birendra Prasad Gupta, Thupten K Lama, Anurag Adhikari, Ananta Shrestha, Ramanuj Rauniyar, Binay Sapkota, Sandeep Thapa, Smita Shrestha, Pawan Prasad Gupta, Krishna Das Manandhar
The aim of this study was to detect the prevalence of hepatitis E virus (HEV) in healthy blood donors so as to decipher the maintenance of (HEV) reservoir if any. Five hundred and eighty-one blood samples along with clinical information were collected from central blood bank, Kathmandu between February and March 2014. Samples were tested for hepatitis B virus surface antigen, anti-hepatitis C virus antibodies, anti-hepatitis A virus IgM, HEV antigen, HEV viral load and anti-HEV antibodies (IgM and IgG) by ELISA...
September 2016: Virusdisease
https://www.readbyqxmd.com/read/28464334/high-prevalence-of-hepatitis-e-virus-infection-in-goats
#19
Feiyan Long, Wenhai Yu, Chenchen Yang, Jue Wang, Yunlong Li, Yi Li, Fen Huang
Hepatitis E virus (HEV) is a major cause of acute hepatitis worldwide, primarily transmitted by fecal-oral route. Zoonotic transmission of HEV from HEV-infected pigs (pork) or cows (milk) to human or non-human primate has been confirmed, but the risk of HEV in goat is still rarely assessed. In the present study, stool, blood, tissues and milk of goat were collected for HEV infection investigation from Dali City of Yunnan Province in China, where raw mutton and goat milk are traditionally consumed. Surprisingly, a high prevalence of HEV infection in goat was found...
May 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28453178/seroprevalence-of-hepatitis-e-virus-among-blood-donors-in-qatar-2013-2016
#20
Gheyath K Nasrallah, Enas S Al Absi, Rula Ghandour, Nadima H Ali, Sara Taleb, Laila Hedaya, Fatima Ali, Mariam Huwaidy, Abdullatif Husseini
BACKGROUND: Hepatitis E virus (HEV) is an RNA virus transmitted mainly through zoonotic transmission or fecal-oral route. More than 80% of Qatar's population are expatriates, including many coming from hyperendemic countries; thus, it is important to estimate the seroprevalence and to compare between different nationalities. The results can be useful in alerting blood banks to the importance of HEV screening. STUDY DESIGN AND METHODS: Samples from 5854 blood donations provided by Hamad Medical Corporation were tested in the period between June 2013 to June 2016...
April 28, 2017: Transfusion
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