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https://www.readbyqxmd.com/read/29786119/full-length-and-defective-enterovirus-g-genomes-with-distinct-torovirus-protease-insertions-are-highly-prevalent-on-a-chinese-pig-farm
#1
Yan Wang, Wen Zhang, Zhijian Liu, Xingli Fu, Jiaqi Yuan, Jieji Zhao, Yuan Lin, Quan Shen, Xiaochun Wang, Xutao Deng, Eric Delwart, Tongling Shan, Shixing Yang
Recombination occurs frequently between enteroviruses (EVs) which are classified within the same species of the Picornaviridae family. Here, using viral metagenomics, the genomes of two recombinant EV-Gs (strains EVG 01/NC_CHI/2014 and EVG 02/NC_CHI/2014) found in the feces of pigs from a swine farm in China are described. The two strains are characterized by distinct insertion of a papain-like protease gene from toroviruses classified within the Coronaviridae family. According to recent reports the site of the torovirus protease insertion was located at the 2C/3A junction region in EVG 02/NC_CHI/2014...
May 21, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29778790/applicability-of-integrated-cell-culture-reverse-transcriptase-quantitative-pcr-icc-rtqpcr-for-the-simultaneous-detection-of-the-four-human-enteric-enterovirus-species-in-disinfection-studies
#2
Hodon Ryu, Karen A Schrantz, Nichole E Brinkman, Laura A Boczek
A newly developed integrated cell culture reverse transcriptase quantitative PCR (ICC-RTqPCR) method and its applicability in UV disinfection studies is described. This method utilizes a cell culture system coupled with four RTqPCR assays to detect four species of human enterovirus (e.g., Enterovirus A, Enterovirus B, Enterovirus C and Enterovirus D). Evaluation of the RTqPCR assays was conducted with coxsackievirus A10, echovirus 30, poliovirus 1 and enterovirus 70 and resulted in 100% specificity for the tested assays...
May 17, 2018: Journal of Virological Methods
https://www.readbyqxmd.com/read/29778429/outcomes-following-severe-hand-foot-and-mouth-disease-a-systematic-review-and-meta-analysis
#3
Eben Jones, Timesh D Pillay, Fengfeng Liu, Li Luo, Juan Carlos Bazo-Alvarez, Chen Yuan, Shanlu Zhao, Qi Chen, Yu Li, Qiaohong Liao, Hongjie Yu, H Rogier van Doorn, Saraswathy Sabanathan
BACKGROUND: Hand, foot and mouth disease (HFMD) caused by enterovirus A71 (EV-A71) is associated with acute neurological disease in children. This study aimed to estimate the burden of long-term sequelae and death following severe HFMD. METHODS: This systematic review and meta-analysis pooled all reports from English and Chinese databases including MEDLINE and Wangfang on outbreaks of clinically diagnosed HFMD and/or laboratory-confirmed EV-A71 with at least 7 days' follow-up published between 1st January 1966 and 19th October 2015...
April 20, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29777445/a-reverse-genetics-system-for-enterovirus-d68-using-human-rna-polymerase-i
#4
Minglei Pan, Shuai Gao, Zhenwei Zhou, Keke Zhang, Sihua Liu, Zhiyun Wang, Tao Wang
Human enterovirus D68 (EV-D68) is a highly contagious virus, which causes respiratory tract infections. However, no effective vaccines are currently available for controlling EV-D68 infection. Here, we developed a reverse genetics system to recover EV-D68 minireplicons and infectious EV-D68 from transfected plasmids using the RNA polymerase I (Pol I) promoter. The EV-D68 minireplicons contained the luciferase reporter gene, which flanked by the non-coding regions of the EV-D68 RNA. The luciferase signals could be detected in cells after transfection and Pol I promoter-mediated luciferase signal was significantly stronger than that mediated by the T7 promoter...
May 17, 2018: Virus Genes
https://www.readbyqxmd.com/read/29777102/a-virus-like-particle-based-tetravalent-vaccine-for-hand-foot-and-mouth-disease-elicits-broad-and-balanced-protective-immunity
#5
Wei Zhang, Wenlong Dai, Chao Zhang, Yu Zhou, Pei Xiong, Shuxia Wang, Xiaohua Ye, Qingwei Liu, Dongming Zhou, Zhong Huang
Hand, foot, and mouth disease (HFMD) is an infectious disease that mainly affects infants and children, causing considerable morbidity and mortality worldwide. HFMD is commonly caused by enterovirus 71 (EV71) and coxsackieviruses A16 (CVA16), A6 (CVA6), and A10 (CVA10). Formalin-inactivated EV71 vaccines are currently available in China; however, these vaccines fail to confer cross-protection against infections by other HFMD-causing enteroviruses, highlighting the necessity of developing a multivalent HFMD vaccine...
May 18, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29777028/microrna-302-cluster-downregulates-enterovirus-71-induced-innate-immune-response-by-targeting-kpna2
#6
Nanfang Peng, Xuecheng Yang, Chengliang Zhu, Li Zhou, Haisheng Yu, Mengqi Li, Yong Lin, Xueyu Wang, Qian Li, Yinglong She, Jun Wang, Qian Zhao, Mengji Lu, Ying Zhu, Shi Liu
Enterovirus 71 (EV71) induces significantly elevated levels of cytokines and chemokines, leading to local or systemic inflammation and severe complications. As shown in our previous study, microRNA (miR) 302c regulates influenza A virus-induced IFN expression by targeting NF-κB-inducing kinase. However, little is known about the role of the miR-302 cluster in EV71-mediated proinflammatory responses. In this study, we found that the miR-302 cluster controls EV71-induced cytokine expression. Further studies demonstrated that karyopherin α2 (KPNA2) is a direct target of the miR-302 cluster...
May 18, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29776940/successful-treatment-of-fulminant-neonatal-enteroviral-myocarditis-in-monochorionic-diamniotic-twins-with-cardiopulmonary-support-intravenous-immunoglobulin-and-pocapavir
#7
Shahnawaz M Amdani, Hannah S Kim, Anthony Orvedahl, Audrey Odom John, Ahmed Said, Kathleen Simpson
Neonatal cardiogenic shock most commonly occurs due to critical congenital heart disease, sepsis, metabolic disorder or arrhythmias. In particular, enterovirus infections are common in the neonatal period, and patients can present with fulminant myocarditis. Early recognition is imperative due to its high morbidity and mortality without prompt and aggressive treatment. We present the successful treatment of fulminant neonatal enteroviral myocarditis in a pair of monochorionic diamniotic twins with cardiopulmonary support, intravenous immunoglobulin and pocapavir, an enteroviral capsid inhibitor...
May 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29776754/willingness-and-influential-factors-of-parents-to-vaccinate-their-children-with-novel-inactivated-enterovirus-71-vaccines-in-guangzhou-china
#8
Tiegang Li, Hui Wang, Yin Lu, Qin Li, Chun Chen, Dahu Wang, Meixia Li, Yilan Li, Jianyun Lu, Zongqiu Chen, Yu Ma, Wenhui Liu, Mengmeng Ma, Di Wu, Jiachun Lu, Zhicong Yang
Hand, foot and mouth disease (HFMD) primarily affects children younger than 5 years of age. Recently, HFMD has ranked as the top notifiable infectious disease in China. In December 2015, China approved two novel inactivated enterovirus 71 vaccines (EV71 vaccines) for HFMD. Parents' acceptance is often essential for vaccination program success. The goal of this study was to identify willingness and influential factors to vaccinate among parents of kindergarteners in Guangzhou, China. A cross-sectional survey of face-to-face interviews was conducted from March to July 2016...
May 15, 2018: Vaccine
https://www.readbyqxmd.com/read/29774468/salivary-anti-coxsackievirus-b4-neutralizing-activity-and-pattern-of-immune-parameters-in-patients-with-type-1-diabetes-a-pilot-study
#9
Magloire Pandoua Nekoua, Akadiri Yessoufou, Enagnon Kazali Alidjinou, Francis Badia-Boungou, Kabirou Moutairou, Famara Sane, Didier Hober
AIMS: Enteroviruses, especially coxsackieviruses B (CV-B), have been associated with the pathogenesis of type 1 diabetes (T1D). An anti-CV-B4 neutralizing activity in saliva of T1D patients was previously reported. Our aim was to study the association between the saliva anti-CV-B4 neutralizing activity and immune parameters in T1D patients in comparison with non-diabetic individuals. METHODS: Saliva and blood samples were collected from 15 T1D patients and 8 controls...
May 17, 2018: Acta Diabetologica
https://www.readbyqxmd.com/read/29767300/development-and-evaluation-of-a-rapid-recombinase-polymerase-amplification-assay-for-the-detection-of-human-enterovirus-71
#10
Dan Yin, Yanan Zhu, Kaifeng Wang, Jing Wang, Xiru Zhang, Min Han, Yaqing He, Qing Chen, Guifang Hu
Enterovirus 71 (EV71) is one of the most common pathogens of hand, foot, and mouth disease (HFMD). A rapid reverse transcription recombinase polymerase amplification (RT-RPA) assay was established to detect EV71 subgenotype C4 (EV71-C4). The 95% detection limit of the RT-RPA was 3.767 log10 genomic copies (LGC)/reaction. The specificity was 100%. In a clinical sample evaluation, this approach demonstrated sufficient clinical performance when compared with a commercial RT-qPCR diagnostic kit. Thus, the RT-RPA assay may be a promising alternative for the detection of EV71-C4...
May 16, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29766552/hand-foot-and-mouth-disease-photolocalized-to-sunburn
#11
Morgan Murphrey, Samantha Casselman, Kevin B Yarbrough
Hand, foot, and mouth disease is a common exanthem linked to infection with several non-polio enteroviruses. This case of an 11-year-old boy with an enteroviral infection limited to areas of sunburn is an atypical presentation of hand, foot, and mouth disease. Recognition of this unusual distribution will allow pediatricians and pediatric dermatologists to appropriately manage and counsel patients and parents.
May 16, 2018: Pediatric Dermatology
https://www.readbyqxmd.com/read/29765110/mast-cells-contribute-to-enterovirus-71-infection-induced-pulmonary-edema-in-neonatal-mice
#12
Yuefei Jin, Chao Zhang, Hui Wang, Guangyuan Zhou, Xiangpeng Wang, Rongguang Zhang, Shuaiyin Chen, Jingchao Ren, Lu Chen, Dejian Dang, Peng Zhang, Yuanlin Xi, Weidong Wu, Weiguo Zhang, Guangcai Duan
Enterovirus (EV) 71 infection has been widely acknowledged as the leading cause of severe hand, foot and mouth disease (HFMD), which may rapidly lead to fatal pulmonary edema. In this study, we established a mouse model for EV71 infection exhibiting high incidence of severe symptoms with pulmonary edema. Mast cells (MCs) accumulation, activation and allergic inflammation were found in the brains, lungs and skeletal muscle of mice after EV71 infection, especially in the lungs of mice. Levels of histamine, platelet-activating factor (PAF), interleukin (IL)-4, IL-5, IL-13, tumor necrosis factor-α (TNF-α), nitric oxide (NO), endocrine gland-derived vascular endothelial growth factor (EG-VEGF) and noradrenaline (NA) were increased in EV71-infected lungs...
May 15, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29763627/evaluation-of-minion-nanopore-sequencing-for-rapid-enterovirus-genotyping
#13
Emily Rames, Joanne Macdonald
Enteroviruses (EV) are associated with a range of serious infections, including aseptic meningitis, hand foot and mouth disease, myocarditis, acute flaccid paralysis and encephalitis. Improved methods for assessing EV genotypic diversity could assist molecular epidemiology studies, clinical diagnosis and environmental surveillance. We report new methods for EV genome amplification, and subsequent genotyping using the miniaturised MinION sequencing device. Importantly, this next-generation sequencer enabled correct strain-level assignment of identity for the EV-A71 isolate assessed, where strains with up to 99...
May 12, 2018: Virus Research
https://www.readbyqxmd.com/read/29758423/tracking-enteric-viruses-in-green-vegetables-from-central-argentina-potential-association-with-viral-contamination-of-irrigation-waters
#14
V E Prez, L C Martínez, M Victoria, M O Giordano, G Masachessi, V E Ré, J V Pavan, R Colina, P A Barril, S V Nates
Consumption of green vegetable products is commonly viewed as a potential risk factor for infection with enteric viruses. The link between vegetable crops and fecally contaminated irrigation water establishes an environmental scenario that can result in a risk to human health. The aim of this work was to analyze the enteric viral quality in leafy green vegetables from Córdoba (Argentina) and its potential association with viral contamination of irrigation waters. During July-December 2012, vegetables were collected from peri-urban green farms (n = 19) and its corresponding urban river irrigation waters (n = 12)...
May 11, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29758237/rapid-detection-of-hand-foot-and-mouth-disease-enterovirus-genotypes-by-multiplex-pcr
#15
Min Wang, Qian Ren, Zhenjie Zhang, Lehai Zhang, Michael J Carr, Juan Li, Hong Zhou, Weifeng Shi
Hand, foot and mouth disease (HFMD) is a pediatric disease associated with infection by enterovirus (EV) genotypes. The major HFMD EV pathogens are enterovirus A71 (EVA71) and coxsackievirus A16 (CVA16); however, recently, coxsackievirus A6 (CVA6) and coxsackievirus A10 (CVA10) have also emerged. EV genotypes cannot be distinguished on clinical grounds and a new methodology for the rapid detection of the four major HFMD EV genotypes is urgently required. In the present study, a multiplex real-time PCR assay was established for the simultaneous detection of CVA6, CVA10, CVA16 and EVA71...
May 11, 2018: Journal of Virological Methods
https://www.readbyqxmd.com/read/29756703/most-commonly-isolated-viruses-in-asthma-exacerbation-and-their-correlation-with-eosinophil-and-total-serum-immunoglobulin-e-levels
#16
Mireya Robledo Aceves, Alejandro Barrón Balderas, María de L Jaime Ornelas
BACKGROUND: Asthma exacerbations are still a cause of hospitalization at the Emergency Department. The triggers of asthma exacerbations include allergens and infections -mostly viral-. The objective of this study was to establish the relationship between viruses detected during an asthma exacerbation and eosinophil and serum immunoglobulin E (IgE) levels in pediatric patients. POPULATION AND METHODS: Cross-sectional. analytical study. Children aged 5-15 years seen at the Pediatric Emergency Department with an asthma exacerbation in the period between March 2013 and February 2016 were included...
June 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29755444/microfluidic-pcr-amplification-and-miseq-amplicon-sequencing-techniques-for-high-throughput-detection-and-genotyping-of-human-pathogenic-rna-viruses-in-human-feces-sewage-and-oysters
#17
Mamoru Oshiki, Takayuki Miura, Shinobu Kazama, Takahiro Segawa, Satoshi Ishii, Masashi Hatamoto, Takashi Yamaguchi, Kengo Kubota, Akinori Iguchi, Tadashi Tagawa, Tsutomu Okubo, Shigeki Uemura, Hideki Harada, Naohiro Kobayashi, Nobuo Araki, Daisuke Sano
Detection and genotyping of pathogenic RNA viruses in human and environmental samples are useful for monitoring the circulation and prevalence of these pathogens, whereas a conventional PCR assay followed by Sanger sequencing is time-consuming and laborious. The present study aimed to develop a high-throughput detection-and-genotyping tool for 11 human RNA viruses [Aichi virus; astrovirus; enterovirus; norovirus genogroup I (GI), GII, and GIV; hepatitis A virus; hepatitis E virus; rotavirus; sapovirus; and human parechovirus] using a microfluidic device and next-generation sequencer...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29755438/caspase-3-inhibition-attenuates-the-cytopathic-effects-of-ev71-infection
#18
Fengmei Song, Xiaoyan Yu, Ting Zhong, Zengyan Wang, Xiangling Meng, Zhaolong Li, Shuxia Zhang, Wenbo Huo, Xin Liu, Yahong Zhang, Wenyan Zhang, Jinghua Yu
Previous studies demonstrate that human enterovirus 71 (EV71), a primary causative agent for hand, foot, and mouth disease, activates caspase-3 through the non-structural viral 3C protein to induce host cell apoptosis; however, until now it was unclear how 3C activates caspase-3 and how caspase-3 activation affects viral production. Our results demonstrate that 3C binds caspase-8 and caspase-9 but does not directly bind caspase-3 to activate them, and that the proteolytic activity of 3C is required by the activation of caspase-8, caspase-9, and caspase-3...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29753903/detection-of-nineteen-enteric-viruses-in-raw-sewage-in-japan
#19
Aksara Thongprachum, Tsuguto Fujimoto, Sayaka Takanashi, Hiroyuki Saito, Shoko Okitsu, Hiroyuki Shimizu, Pattara Khamrin, Niwat Maneekarn, Satoshi Hayakawa, Hiroshi Ushijima
One-year surveillance for enteric viruses in raw sewage was conducted in Kansai area, central part of Japan from July 2015 to June 2016. The raw sewage was collected monthly from an inlet polluted pool and was concentrated by polyethylene glycol (PEG) precipitation. Twelve sewage samples were screened for nineteen kinds of enteric viruses by using RT-PCR method and further analyzed by nucleotide sequencing. Twelve enteric viruses were found in the investigative sewage samples. Rotavirus A and norovirus GI and GII with several genotypes were detected all year round...
May 10, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29748124/contribution-of-the-filmarray-%C3%A2-gastrointestinal-panel-in-the-laboratory-diagnosis-of-gastroenteritis-in-a-cohort-of-children-a-two-year-prospective-study
#20
Adriana Calderaro, Monica Martinelli, Mirko Buttrini, Sara Montecchini, Silvia Covan, Sabina Rossi, Francesca Ferraglia, Paolo Montagna, Federica Pinardi, Sandra Larini, Maria Cristina Arcangeletti, Maria Cristina Medici, Carlo Chezzi, Flora De Conto
This study represents a 2-year picture of the epidemiology of enteric pathogens in children suffering from gastroenteritis using the FilmArray® Gastrointestinal Panel (FA-GP), a multiplex molecular assay that allows to simultaneously detect a large panel of pathogens independently of the etiological suspicion and to evaluate its potential contribution to the diagnosis compared to the conventional methods. A total of 1716 stool samples, collected from children with clinical suspicion of bacterial and/or viral gastroenteritis attending the University Hospital of Parma, was submitted to the FA-GP and, when an adequate aliquot was available, to electron microscopy (n = 1163) for virus detection and to an enterovirus-targeting real-time PCR (n = 1703)...
May 2, 2018: International Journal of Medical Microbiology: IJMM
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