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https://www.readbyqxmd.com/read/29346074/a-partial-deletion-within-foot-and-mouth-disease-virus-non-structural-protein-3a-causes-clinical-attenuation-in-cattle-but-does-not-prevent-subclinical-infection
#1
Carolina Stenfeldt, Jonathan Arzt, Juan M Pacheco, Douglas P Gladue, George R Smoliga, Ediane B Silva, Luis L Rodriguez, Manuel V Borca
Deletions within the 3A coding region of foot-and-mouth disease virus (FMDV) are associated with decreased virulence in cattle; however, the mechanisms are unknown. We compared experimental infection of cattle with virulent FMDV O1Campos (O1Ca) and a mutant derivative (O1Ca∆3A) lacking residues 87-106 of 3A. Unexpectedly, primary infection of the nasopharyngeal mucosa was similar for both viruses. However, while O1Ca caused viremia and fulminant clinical disease, O1Ca∆3A infection was subclinical and aviremic...
January 12, 2018: Virology
https://www.readbyqxmd.com/read/29341485/development-of-a-chemiluminescence-immunoassay-using-recombinant-non-structural-epitope-based-proteins-to-accurately-differentiate-foot-and-mouth-disease-virus-infected-and-vaccinated-bovines
#2
Z-Z Liu, F-R Zhao, S-D Gao, J-J Shao, Y-G Zhang, H-Y Chang
The contamination of inactivated vaccine with non-structural proteins (NSPs) leads to a high false-positive rate, which is a substantial barrier to accurately differentiate foot-and-mouth disease virus (FMDV)-infected animals from vaccinated animals. To address this problem, a new chemiluminescence immunoassay (CLIA) method was developed to detect antibodies targeting the two recombinant epitope-based proteins located in 3A and 3B. The 3Aepitp-3Bepitp CLIA exhibited a diagnostic sensitivity of 94.0% and a diagnostic specificity of 97...
January 16, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29324904/prohibitin-plays-a-critical-role-in-enterovirus-71-neuropathogenesis
#3
Issac Horng Khit Too, Isabelle Bonne, Eng Lee Tan, Justin Jang Hann Chu, Sylvie Alonso
A close relative of poliovirus, enterovirus 71 (EV71) is regarded as an important neurotropic virus of serious public health concern. EV71 causes Hand, Foot and Mouth Disease and has been associated with neurological complications in young children. Our limited understanding of the mechanisms involved in its neuropathogenesis has hampered the development of effective therapeutic options. Here, using a two-dimensional proteomics approach combined with mass spectrometry, we have identified a unique panel of host proteins that were differentially and dynamically modulated during EV71 infection of motor-neuron NSC-34 cells, which are found at the neuromuscular junctions where EV71 is believed to enter the central nervous system...
January 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29323107/serological-survey-of-neutralizing-antibodies-to-eight-major-enteroviruses-among-healthy-population
#4
Rui Zhu, Tong Cheng, Zhichao Yin, Dongxiao Liu, Longfa Xu, Yongchao Li, Wei Wang, Jian Liu, Yuqiong Que, Xiangzhong Ye, Qiyi Tang, Qinjian Zhao, Shengxiang Ge, Shuizhen He, Ningshao Xia
Human enteroviruses (EVs) are the most common causative agents infecting human, causing many harmful diseases, such as hand, foot, and mouth disease (HFMD), herpangina (HA), myocarditis, encephalitis, and aseptic meningitis. EV-related diseases pose a serious worldwide threat to public health. To gain comprehensive insight into the seroepidemiology of major prevalent EVs in humans, we firstly performed a serological survey for neutralizing antibodies (nAbs) against Enterovirus A71 (EV-A71), Coxsackie virus A16 (CV-A16), Coxsackie virus A6 (CV-A6), Coxsackie virus A10 (CV-A10), Coxsackie virus B3 (CV-B3), Coxsackie virus B5 (CV-B5), Echovirus 25 (ECHO25), and Echovirus 30 (ECHO30) among the healthy population in Xiamen City in 2016, using micro-neutralization assay...
January 10, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29319516/genetic-characterization-of-human-enteroviruses-associated-with-hand-foot-and-mouth-diseases-in-poland-2013-2016
#5
Magdalena Wieczorek, Agnieszka Ciąćka, Arleta Krzysztoszek, Agnieszka Figas, Leszek Szenborn
The objective of the present study was to describe the molecular characteristics of enteroviruses associated with hand, food, and mouth disease (HFMD) in Poland. Clinical material from HFMD cases, that occurred during 2013-2016 were examined. It has been showed that coxsackievirus A6 (CVA6), CVA10 and CVA16 were circulating in the country. Phylogenetic analysis showed that Polish CVA6 strains were divided into two distinct clusters suggesting two independent introductions. This is the first report of CVA6 infections associated with HFMD in Poland...
September 27, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/29311608/a-novel-rat-cvb1-vp1-monoclonal-antibody-3a6-detects-a-broad-range-of-enteroviruses
#6
Niila V V Saarinen, Jutta E Laiho, Sarah J Richardson, Marie Zeissler, Virginia M Stone, Varpu Marjomäki, Tino Kantoluoto, Marc S Horwitz, Amirbabak Sioofy-Khojine, Anni Honkimaa, Minna M Hankaniemi, Malin Flodström-Tullberg, Heikki Hyöty, Vesa P Hytönen, Olli H Laitinen
Enteroviruses (EVs) are common RNA viruses that cause diseases ranging from rash to paralytic poliomyelitis. For example, EV-A and EV-C viruses cause hand-foot and mouth disease and EV-B viruses cause encephalitis and myocarditis, which can result in severe morbidity and mortality. While new vaccines and treatments for EVs are under development, methods for studying and diagnosing EV infections are still limited and therefore new diagnostic tools are required. Our aim was to produce and characterize new antibodies that work in multiple applications and detect EVs in tissues and in vitro...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29310596/different-responses-of-weather-factors-on-hand-foot-and-mouth-disease-in-three-different-climate-areas-of-gansu-china
#7
Faxiang Gou, Xinfeng Liu, Jian He, Dongpeng Liu, Yao Cheng, Haixia Liu, Xiaoting Yang, Kongfu Wei, Yunhe Zheng, Xiaojuan Jiang, Lei Meng, Wenbiao Hu
BACKGROUND: To determine the linear and non-linear interacting relationships between weather factors and hand, foot and mouth disease (HFMD) in children in Gansu, China, and gain further traction as an early warning signal based on weather variability for HFMD transmission. METHOD: Weekly HFMD cases aged less than 15 and meteorological information from 2010 to 2014 in Jiuquan, Lanzhou and Tianshu, Gansu, China were collected. Generalized linear regression models (GLM) with Poisson link and classification and regression trees (CART) were employed to determine the combined and interactive relationship of weather factors and HFMD in both linear and non-linear ways...
January 8, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29306826/ambient-temperature-humidity-and-hand-foot-and-mouth-disease-a-systematic-review-and-meta-analysis
#8
REVIEW
Qiang Cheng, Lijun Bai, Yanwu Zhang, Heng Zhang, Shusi Wang, Mingyu Xie, Desheng Zhao, Hong Su
BACKGROUND: The relationship between ambient temperature, humidity and hand, foot, and mouth disease (HFMD) has been highlighted in East and Southeast Asia, which showed multiple different results. Therefore, our goal is to conduct a meta-analysis to further clarify this relationship and to quantify the size of these effects as well as the susceptible populations. METHODS: PubMed, Web of science, and Cochrane library were searched up to November 22, 2017 for articles analyzing the relationships between ambient temperature, humidity and incidence of HFMD...
January 4, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29302776/epidemiological-situation-of-transboundary-animal-diseases-in-north-african-countries-proposition-of-a-regional-control-strategy
#9
REVIEW
Moustafa Kardjadj
The Food and Agricultural Organization (FAO) defined transboundary animal diseases (TADs) as those that are of significant economic, trade, and food security importance for a considerable number of countries. TADs can easily spread to other countries, reach epidemic proportions, and where control, management, or exclusion is required cooperation between several countries. The North African countries are vulnerable to several TADs by virtue of its geographical location, its borders with the Sahel region, and peculiar control constraints on the budgets of the national veterinary services of each country and on the livelihoods of livestock owners across the region...
January 5, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29298696/enhanced-human-enterovirus-71-infection-by-endocytosis-inhibitors-reveals-multiple-entry-pathways-by-enterovirus-causing-hand-foot-and-mouth-diseases
#10
Meichun Yuan, Jingjing Yan, Jingna Xun, Chong Chen, Yuling Zhang, Min Wang, Wenqi Chu, Zhigang Song, Yunwen Hu, Shuye Zhang, Xiaoyan Zhang
BACKGROUND: Human enterovirus 71 (EV71) was previously known to enter cells through clathrin or caveolar mediated endocytic pathways. However, we observed chlorpromazine (CPZ) or dynasore (DNS), which inhibit clathrin and dynamin mediated endocytosis, did not suppress EV71 cell entry in particular cell types. So the current knowledge of entry mechanisms by EV71 is not complete. METHODS: Viral infection was examined by flow cytometry or end-point dilution assays...
January 3, 2018: Virology Journal
https://www.readbyqxmd.com/read/29291236/clinical-characteristics-of-hand-foot-and-mouth-disease-in-daklak-province-vietnam-and-associated-factors-of-severe-cases
#11
Hau Van Pham, Tuan N A Hoang, Hao T Duong, Lan T Phan, Uyen T N Phan, Nguyen X Ho, Cuong Q Hoang
The Hand, Foot and Mouth Disease (HFMD) outbreaks occurred throughout Daklak province, Vietnam in 2011. This study reviewed all 744 medical records of HFMD patients admitted to Daklak Hospital in 2011 to describe the clinical characteristics of HFMD patients and determined factors associated with severe illness. Among 744 patients, 63 (8.5%) cases were severe. Most (695, 93.4%) of the cases were 3 years old or younger, and 464 (62.4%) were boys. The number of cases peaked between August and November. Most (726, 97...
December 2017: Virusdisease
https://www.readbyqxmd.com/read/29290295/financial-impact-of-foot-and-mouth-disease-outbreaks-on-pig-farms-in-the-republic-of-korea-2014-2015
#12
Hachung Yoon, Wooseog Jeong, Jun-Hee Han, Jida Choi, Yong-Myung Kang, Yong-Sang Kim, Hong-Sig Park, Tim E Carpenter
The financial impact of foot-and-mouth disease (FMD) that occurred in 180 piggeries (100 farrow-to-finish and 80 fattening farms) confirmed infected during the 2014/2015 epidemic in the Republic of Korea was estimated at the farm level. The median loss due to slaughtering of pigs prior to their expected market weights was US$ 71.8 (uncovered compensation-compensation loss) plus US$ 57.3 (foregone net gain) per pig. Median loss per farm was US$ 27,487 (55.6% of total loss) for compensation and US$ 15,925 (44...
January 1, 2018: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/29282795/interplay-of-foot-and-mouth-disease-virus-with-cell-mediated-and-humoral-immunity-of-host
#13
REVIEW
Muhammad Abubakar, Shumaila Manzoor, Afshan Ahmed
Foot and mouth disease virus (FMDV) causes a communicable disease of cloven hoofed animals, resulting in major economic losses during disease outbreaks. Like other members of the Picornaviridae FMDV has a relatively short infectious cycle; initiation of infection and dissemination, with production of infectious virions occurs in less than a week. The components of innate immunity as well as cell-mediated and humoral immunity play a crucial role in control of FMDV. However, it has been shown in vitro using a mouse model that FMDV has evolved certain mechanisms to counteract host immune responses ensuring its survival and spread...
December 28, 2017: Reviews in Medical Virology
https://www.readbyqxmd.com/read/29282065/pulmonary-edema-following-central-nervous-system-lesions-induced-by-a-non-mouse-adapted-ev71-strain-in-neonatal-balb-c-mice
#14
Yuefei Jin, Chao Zhang, Rongguang Zhang, Jingchao Ren, Shuaiyin Chen, Meili Sui, Guangyuan Zhou, Dejian Dang, Jiehui Zhu, Huifen Feng, Yuanlin Xi, Haiyan Yang, Guangcai Duan
BACKGROUND: Enterovirus (EV) infection has been a serious health issue in Asia-Pacific region. It has been indicated that the occurrence of fatal hand foot and mouth disease (HFMD) cases following EV71 infection is mainly attributed to pulmonary edema. However, the development of pulmonary disorders after EV71 infection remains largely unknown. To establish an EV71-infected animal model and further explore the underlying association of central nervous system (CNS) invasion with pulmonary edema, we isolated a clinical source EV71 strain (ZZ1350) from a severe case in Henan Province...
December 28, 2017: Virology Journal
https://www.readbyqxmd.com/read/29280507/soybean-oil-containing-ginseng-saponins-as-adjuvants-promotes-production-of-cytokines-and-enhances-immune-responses-to-foot-and-mouth-disease-vaccine
#15
Cenrong Zhang, Wei Xu, Jian Chen, Ran Guan, Shicheng Bi, Haibo Jin, Xuemei Cui, Fushan Shi, Songhua Hu
The adjuvant effect of soybean oil containing ginseng root saponins (SO-GS-R) on the immune response to foot-and-mouth disease vaccine (FMDV) in mice was investigated in this study. When immunized with FMDV antigen emulsified in an SO-GS-R formulation, mice generated remarkably higher serum antibody and cytokine responses than mice immunized with FMDV antigen alone. To elucidate the mechanisms underlying the adjuvant effect of SO-GS-R, we measured cytokines in the serum and muscle tissue after intramuscular injection of SO-GS-R...
December 27, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/29273280/epidemix-an-interactive-multi-model-application-for-teaching-and-visualizing-infectious-disease-transmission
#16
Ulrich Muellner, Guillaume Fournié, Petra Muellner, Christina Ahlstrom, Dirk U Pfeiffer
Mathematical models of disease transmission are used to improve our understanding of patterns of infection and to identify factors influencing them. During recent public and animal health crises, such as pandemic influenza, Ebola, Zika, foot-and-mouth disease, models have made important contributions in addressing policy questions, especially through the assessment of the trajectory and scale of outbreaks, and the evaluation of control interventions. However, their mathematical formulation means that they may appear as a "black box" to those without the appropriate mathematical background...
December 11, 2017: Epidemics
https://www.readbyqxmd.com/read/29259271/clearance-of-a-persistent-picornavirus-infection-is-associated-with-enhanced-pro-apoptotic-and-cellular-immune-responses
#17
Carolina Stenfeldt, Michael Eschbaumer, George R Smoliga, Luis L Rodriguez, James Zhu, Jonathan Arzt
Long-term persistent viral infections cause substantial morbidity and associated economic losses in human and veterinary contexts. Yet, the mechanisms associated with establishment of persistent infections are poorly elucidated. We investigated immunomodulatory mechanisms associated with clearance versus persistence of foot-and-mouth disease virus (FMDV) in micro-dissected compartments of the bovine nasopharynx by microarray. The use of laser-capture microdissection allowed elucidation of differential gene regulation within distinct anatomic compartments critical to FMDV infection...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29258646/epidemiology-of-hand-foot-and-mouth-disease-in-china-2008-to-2015-prior-to-the-introduction-of-ev-a71-vaccine
#18
Bingyi Yang, Fengfeng Liu, Qiaohong Liao, Peng Wu, Zhaorui Chang, Jiao Huang, Lu Long, Li Luo, Yu Li, Gabriel M Leung, Benjamin J Cowling, Hongjie Yu
IntroductionHand, foot and mouth disease (HFMD) is usually caused by several serotypes from human enterovirus A species, including enterovirus 71 (EV-A71) and coxsackievirus A16 (CV-A16). Two inactivated monovalent EV-A71 vaccines have been recently licensed in China and monovalent CV-A16 vaccine and bivalent EV-A71 and CV-A16 vaccine are under development. Methods: Using notifications from the national surveillance system, we describe the epidemiology and dynamics of HFMD in the country, before the introduction of EV-A71 vaccination, from 2008 through 2015...
December 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/29250910/dynamics-of-widespread-foot-and-mouth-disease-virus-serotypes-a-o-and-asia-1-in-southern-asia-a-bayesian-phylogenetic-perspective
#19
B P Brito, J K Mohapatra, S Subramaniam, B Pattnaik, L L Rodriguez, B R Moore, A M Perez
Foot-and-mouth disease (FMD) is, arguably, the animal disease with the most devastating global economic impact owing in part, to the severe trade restrictions imposed upon affected countries and regions. South Asia is one of the regions where widespread lineages of the FMDV virus (FMDV) have emerged. Here, we performed an integrative phylogenetic analysis of all FMDV serotypes (A, O and Asia-1) circulating in southern Asia, including viral sequences collected until 2013. Our results describe the occurrence of FMD caused by different serotypes and lineages, focusing in the cycles where a specific lineage predominates within a region for a protracted period and then are rapidly or progressively replaced by an emergent or re-emergent strain that is introduced from an adjacent region...
December 17, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29245260/risk-factors-for-death-in-children-with-critical-and-severe-hand-foot-and-mouth-disease-in-chongqing-china-an-observational-study
#20
Gaihuan Zheng, Jiaoyang Cao, Jie Yu, Zhenzhen Zhang, Quanbo Liu, Junhua Chen
Hand-foot-and-mouth disease (HFMD) is a common childhood infection that may lead to serious complications and even death. Globally, epidemics of HFMD are increasing each year, especially in China. This study aimed to identify risk factors for death in children with critical and severe HFMD in Chongqing, China.We performed an observational study involving patients with critical and severe HFMD admitted to the Children's Hospital of Chongqing Medical University from January 2009 to December 2016. Overall, 179 patients aged 2 months to 16 years, were included; 127 died (non-survival group) and 52 survived (survival group); the case-fatality rate was 70...
December 2017: Medicine (Baltimore)
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