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https://www.readbyqxmd.com/read/28335535/enterovirus-71-neutralizing-antibodies-seroepidemiological-research-among-children-in-guangzhou-china-between-2014-and-2015-a-cross-sectional-study
#1
Dingmei Zhang, Yan Chen, Xiashi Chen, Zhenjian He, Xun Zhu, Yuantao Hao
A hand-foot-mouth disease outbreak occurred in 2014 around Guangdong. The purpose of this study was investigating the status and susceptibility of infectious neutralizing antibodies to enterovirus 71 among children so as to provide scientific evidence for the population immunity level of hand-foot-mouth disease and prepare for enterovirus 71 vaccination implementation. Serum specimens were collected from children in communities from January 2014 to March 2015 in Guangzhou. A total of 197 serum samples from children 1-5 years old were collected for this cross-sectional study via non-probabilistic sampling from the database of Chinese National Science and Technique Major Project...
March 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28334452/quantitative-assessment-of-the-risk-of-release-of-foot-and-mouth-disease-virus-via-export-of-bull-semen-from-israel
#2
A Meyer, L Zamir, A Ben Yair Gilboa, B Gelman, D U Pfeiffer, T Vergne
Various foot-and-mouth disease (FMD) virus strains circulate in the Middle East, causing frequent episodes of FMD outbreaks among Israeli livestock. Since the virus is highly resistant in semen, artificial insemination with contaminated bull semen may lead to the infection of the receiver cow. As a non-FMD-free country with vaccination, Israel is currently engaged in trading bull semen only with countries of the same status. The purpose of this study was to assess the risk of release of FMD virus through export of bull semen in order to estimate the risk for FMD-free countries considering purchasing Israeli bull semen...
March 23, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28332656/thermal-inactivation-of-foot-and-mouth-disease-virus-in-extruded-pet-food
#3
S Gubbins, J Forster, S Clive, D Schley, S Zuber, J Schaaff, D Corley
The risk of importing foot and mouth disease, a highly contagious viral disease of livestock, severely restricts trade and investment opportunities in many developing countries where the virus is present. This study was designed to investigate the inactivation of foot and mouth disease virus (FMDV) by heat treatments used in extruded commercial pet food manufacture. If extrusion could be shown to reliably inactivate the virus, this could potentially facilitate trade for FMDV-endemic countries. The authors found that there was no detectable virus following: i) treatment of FMDVspiked meat slurry at 68°C for 300 s; ii) treatment of FMDV-spiked slurry and meal mix at 79°C for 10 or 30 s, or iii) treatment of homogenised bovine tongue epithelium, taken from an FMDV-infected animal, at 79°C for 10 s...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28332654/vp1-sequencing-protocol-for-foot-and-mouth-disease-virus-molecular-epidemiology
#4
N J Knowles, J Wadsworth, K Bachanek-Bankowska, D P King
Nucleotide sequences of field strains of foot and mouth disease virus (FMDV) contribute to our understanding of the distribution and evolution of viral lineages that circulate in different regions of the world. This paper outlines a practical reversetranscription polymerase chain reaction (RT-PCR) and sequencing strategy that can be used to generate RNA sequences encoding the VP1 (1D) region of FMDV. The protocol contains a panel of PCR and sequencing primers that can be selected to characterise genetically diverse isolates representing all seven FMDV serotypes...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28332653/review-of-the-foot-and-mouth-disease-situation-in-north-africa-and-the-risk-of-introducing-the-disease-into-europe
#5
R Bouguedour, A Ripani
Foot and mouth disease (FMD) is a highly contagious disease of cloven-hoofed animals, including cattle, pigs, sheep, goats, and certain wildlife species. The disease can cause massive economic losses when introduced into countries that were free from the infection, generating negative effects due to reduced animal productivity and restrictions on international livestock trade. Following 15 years of FMD absence, Tunisia and Algeria experienced an incursion of the disease in 2014. The epidemiological situation and disease control measures in operation for FMD in the North African region are not homogeneous...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28332652/the-impact-of-importation-of-live-ruminants-on-the-epizootiology-of-foot-and-mouth-disease-in-saudi-arabia
#6
I H A Abd El-Rahim, A H Asghar, A M Mohamed, S M Fat'hi
Approximately five million live ruminants are imported annually into Saudi Arabia. The majority of these animals are imported shortly before the pilgrimage season from Sudan and the Horn of Africa, where foot and mouth disease (FMD) is known to be enzootic. This study was designed to investigate the impact of the importation of these live ruminants on the epizootiology of FMD in Saudi Arabia. The authors carried out antibody testing on a total of 480 sheep and 233 cattle from the sacrificial livestock yards of the Saudi Project for Utilization of Hajj Meat, which performs ritual slaughter on behalf of pilgrims in the Holy City of Makkah...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28330886/preclinical-diagnosis-predicting-its-ability-to-improve-control-of-farm-to-farm-foot-and-mouth-disease-transmission-in-cattle
#7
Noel Nelson, David J Paton, Simon Gubbins, Claire Colenutt, Emma Brown, Sophia Hodgson, Jose L Gonzales
Foot-and-mouth disease (FMD) can cause large disruptive epidemics in livestock. Current eradication measures rely on the rapid clinical detection and removal of infected herds. Here, we have evaluated the potential for preclinical diagnosis during reactive surveillance to reduce the risk of between farm transmission. We used data from transmission experiments in cattle where both individual animal samples, such as blood, probang, saliva or nasal swabs, and herd level samples, such as air samples, were taken daily during the course of infection...
March 22, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28322918/favipiravir-can-evoke-lethal-mutagenesis-and-extinction-of-foot-and-mouth-disease-virus
#8
Ana Isabel de Avila, Elena Moreno, Celia Perales, Esteban Domingo
Antiviral agents are increasingly considered an option for veterinary medicine. An understanding of their mechanism of activity is important to plan their administration either as monotherapy or in combination with other agents. Previous studies have shown that the broad spectrum antiviral agent favipiravir (T-705) and its derivatives T-1105 and T-1106 are efficient inhibitors of foot-and-mouth disease virus (FMDV) replication in cell culture and in vivo. However, no mechanism for their activity against FMDV has been proposed...
March 17, 2017: Virus Research
https://www.readbyqxmd.com/read/28322333/squamous-epitheliotropism-of-enterovirus-a71-in-human-epidermis-and-oral-mucosa
#9
Win Kyaw Phyu, Kien Chai Ong, Chee Kwan Kong, Abdul Khalil Alizan, Tindivanam Muthurangam Ramanujam, Kum Thong Wong
Hand-foot-and-mouth disease is a self-limiting paediatric infectious disease commonly caused by Enterovirus A71 (Genus: Enterovirus, Family: Picornaviridae). Typical lesions in and around the hands, feet, oral cavity and other places may rarely be complicated by acute flaccid paralysis and acute encephalomyelitis. Although virus is readily cultured from skin vesicles and oral secretions, the cellular target/s of Enterovirus A71 in human skin and oral mucosa are unknown. In Enterovirus A71-infected human skin and oral mucosa organotypic cultures derived from the prepuce and lip biopsies, focal viral antigens and viral RNA were localized to cytoplasm of epidermal and mucosal squamous cells as early as 2 days post-infection...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28315707/combined-administration-of-synthetic-rna-and-a-conventional-vaccine-improves-immune-responses-and-protection-against-foot-and-mouth-disease-virus-in-swine
#10
Belén Borrego, Esther Blanco, Miguel Rodríguez Pulido, Francisco Mateos, Gema Lorenzo, Sabrina Cardillo, Eliana Smitsaart, Francisco Sobrino, Margarita Sáiz
Foot-and-mouth disease virus (FMDV) is the causative agent of a highly contagious disease and a major concern in animal health worldwide. We have previously reported the use of RNA transcripts mimicking structural domains in the non-coding regions of the FMDV RNA as potent type-I interferon (IFN) inducers showing antiviral effect in vivo, as well as their immunomodulatory properties in combination with an FMD vaccine in mice. Here, we describe the enhancing effect of RNA delivery on the immunogenicity and protection induced by a suboptimal dose of a conventional FMD vaccine in pigs...
March 16, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28303920/the-golgi-protein-acbd3-facilitates-enterovirus-71-replication-by-interacting-with-3a
#11
Xiaobo Lei, Xia Xiao, Zhenzhen Zhang, Yijie Ma, Jianli Qi, Chao Wu, Yan Xiao, Zhuo Zhou, Bin He, Jianwei Wang
Enterovirus 71 (EV71) is a human pathogen that causes hand, foot, mouth disease and neurological complications. Although EV71, as well as other enteroviruses, initiates a remodeling of intracellular membrane for genomic replication, the regulatory mechanism remains elusive. By screening human cDNA library, we uncover that the Golgi resident protein acyl-coenzyme A binding domain-containing 3 (ACBD3) serves as a target of the 3A protein of EV71. This interaction occurs in cells expressing 3A or infected with EV71...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28302925/best-practices-to-prevent-transmission-and-control-outbreaks-of-hand-foot-and-mouth-disease-in-childcare-facilities-a-systematic-review
#12
REVIEW
J Hy Chan, C K Law, E Hamblion, H Fung, J Rudge
INTRODUCTION: Hand, foot, and mouth disease continues to cause seasonal epidemics in the Asia-Pacific Region. Since the current Enterovirus 71 vaccines do not provide cross-protection for all Enterovirus species that cause hand, foot, and mouth disease, there is an urgent need to identify appropriate detection tools and best practice to prevent its transmission and to effectively control its outbreaks. This systematic review aimed to identify characteristics of outbreak and assess the impact and effectiveness of detection tools and public health preventive measures to interrupt transmission...
March 17, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28298597/sat2-foot-and-mouth-disease-virus-fmdv-structurally-modified-for-increased-thermostability
#13
Katherine A Scott, Abhay Kotecha, Julian Seago, Jingshan Ren, Elizabeth E Fry, David I Stuart, Bryan Charleston, Francois F Maree
Foot-and-mouth disease virus (FMDV) is notoriously unstable, particularly the O and SAT serotypes. Consequently, vaccines derived from heat-labile SAT viruses have been linked to the induction of poor duration immunity and hence require more frequent vaccinations to ensure protection. In-silico calculations predicted residue substitutions that would increase interactions at the inter-pentameric interface supporting increased stability. We assessed the stability of the 18 recombinant mutant viruses for their growth kinetics; antigenicity; plaque morphology; genetic stability; temperature, ionic and pH stability using the thermofluor and inactivation assays, in order to evaluate potential SAT2 vaccine candidates with improved stability...
March 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28280025/complete-genome-sequence-of-a-foot-and-mouth-disease-virus-of-serotype-o-isolated-from-gimje-republic-of-korea-in-2016
#14
Soyoon Ryoo, Taeseong Kim, Jin Ju Nah, Min Geun Sagong, Sumee Lee, Kwang-Nyeong Lee, Young-Joon Ko, Jong-Hyeon Park, Myoung-Heon Lee, Sung-Hwan Wee, Dongseob Tark, Bok Kyung Ku
The complete genome sequence of a foot-and-mouth disease (FMD) serotype O virus isolated from Gimje, Republic of Korea, is reported here.
March 9, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28280023/complete-genome-sequence-of-a-foot-and-mouth-disease-virus-of-serotype-o-isolated-from-gochang-republic-of-korea-in-2016
#15
Taeseong Kim, Soyoon Ryoo, Jin Ju Nah, Min Geun Sagong, Sumee Lee, Kwang-Nyeong Lee, Young-Joon Ko, Jong-Hyeon Park, Myoung-Heon Lee, Sung-Hwan Wee, Dongseob Tark, Bok Kyung Ku
The complete genome sequence of a foot-and-mouth disease (FMD) serotype O virus isolated from Gochang, Republic of Korea, is reported here.
March 9, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28274636/enhancing-enterovirus-a71-vaccine-production-yield-by-microcarrier-profusion-bioreactor-culture
#16
Chia-Chyi Liu, Suh-Chin Wu, Shang-Rung Wu, Hsiao-Yu Lin, Meng-Shin Guo, Alan Yung-Chih Hu, Yen-Hung Chow, Jen-Ron Chiang, Dar-Bin Shieh, Pele Chong
Hand, foot and mouth diseases (HFMD) are mainly caused by Enterovirus A71 (EV-A71) infections. Clinical trials in Asia conducted with formalin-inactivated EV-A71 vaccine candidates produced from serum-free Vero cell culture using either roller bottle or cell factory technology, are found to be safe and highly efficacious. To increase vaccine yields and reduce the production costs, the bioprocess improvement for EV-A71 vaccine manufacturing is currently being investigated. The parameters that could affect and enhance the production yields of EV-A71 virus growth in the microcarrier bioreactor were investigated...
March 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28260627/purification-of-foot-and-mouth-disease-virus-by-heparin-as-ligand-for-certain-strains
#17
Ping Du, Shiqi Sun, Jinjie Dong, Xiaoying Zhi, Yanyan Chang, Zhidong Teng, Huichen Guo, Zaixin Liu
The goal of this project was to develop an easily operable and scalable process for the recovery and purification of foot-and-mouth disease virus (FMDV) from cell culture. Heparin resins HipTrap Heparin HP and AF-Heparin HC-650 were utilized to purify FMDV O/HN/CHA/93. Results showed that the purity of AF-Heparin HC-650 was ideal. Then, the O/HN/CHA/93, O/Tibet/CHA/99, Asia I/HN/06, and A/CHA/HB/2009 strains were purified by AF-Heparin HC-650. Their affinity/virus recoveries were approximately 51.2%/45.8%, 71...
April 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28258408/identification-of-a-conserved-conformational-epitope-in-the-vp2-protein-of-foot-and-mouth-disease-virus
#18
Wenming Liu, Baolin Yang, Mingxia Wang, Weifeng Liang, Haiwei Wang, Decheng Yang, Wenge Ma, Guohui Zhou, Li Yu
Foot-and-mouth disease (FMD), caused by foot-and-mouth disease virus (FMDV), is a highly contagious infectious disease that affects domestic and wild cloven-hoofed animals worldwide. VP2 is a structural protein of FMDV. In this study, a potent FMDV serotype-independent monoclonal antibody (MAb) 3D9 was generated. Screening of a phage-displayed random 12-peptide library revealed that MAb 3D9 bound to phages displaying a consensus motif GVYxxAYxW that is highly homologous to the (89)GVYxxxxxxxAYxxxxW(105) motif in the FMDV VP2 protein...
March 3, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28251837/quantitative-characteristics-of-the-foot-and-mouth-disease-carrier-state-under-natural-conditions-in-india
#19
S S Hayer, R Ranjan, J K Biswal, S Subramaniam, J K Mohapatra, G K Sharma, M Rout, B B Dash, B Das, B R Prusty, A K Sharma, C Stenfeldt, A Perez, L L Rodriguez, B Pattnaik, K VanderWaal, J Arzt
The goal of this study was to characterize the properties and duration of the foot-and-mouth disease (FMD) carrier state and associated serological responses subsequent to vaccination and naturally occurring infection at two farms in northern India. Despite previous vaccination of cattle in these herds, clinical signs of FMD occurred in October 2013 within a subset of animals at the farms containing juvenile-yearling heifers and steers (Farm A) and adult dairy cattle (Farm B). Subsequent to the outbreak, FMD virus (FMDV) asymptomatic carriers were identified in both herds by seroreactivity to FMDV non-structural proteins and detection of FMDV genomic RNA in oropharyngeal fluid...
March 2, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28250116/a-neonatal-murine-model-of-coxsackievirus-a6-infection-for-evaluation-of-antiviral-and-vaccine-efficacy
#20
Zhenjie Zhang, Zhaopeng Dong, Qingjuan Wei, Michael J Carr, Juan Li, Shujun Ding, Yigang Tong, Dong Li, Weifeng Shi
Hand, foot and mouth disease (HFMD) is a global health concern. Family Picornaviridae members, particularly enterovirus 71 (EVA71) and Coxsackievirus A16 (CVA16), are the primary etiological agents of HFMD, however, a third enterovirus A species, CoxsackievirusA6 (CVA6), has been recently associated with epidemic outbreaks. Study of the pathogenesis of CVA6 infection and development of antivirals and vaccines are hindered due to the lack of appropriate animal models. We have developed and characterized a murine model of CVA6 infection which was employed to evaluate the antiviral activities of different drugs and the protective efficacies of CVA6-inactivated vaccines...
March 1, 2017: Journal of Virology
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