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https://www.readbyqxmd.com/read/28231666/-an-outbreak-of-paratyphoid-fever-in-a-county-of-yunnan-province-2010-2011
#1
S K Wang, Z G Wang, X H Zhang, B Yang, Q Wu, B Kan, Y H Zhou, R S Yang, M Y Yan
Objective: To identify the source and to comment on control program regarding an outbreak of paratyphoid A fever in a county, through field studies. Methods: Descriptive epidemiological methods were adopted to describe the epidemiological characteristics of the outbreak, which occurred in Yuanjiang county, Yunan province between 2010-2011, China. Case-control study with environmental investigation was performed to identify related risk factors and pathogens while isolation and susceptibility on the suspected pathogens were conducted...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28231271/applying-antibody-sensitive-hypervariable-region-1-deleted-hepatitis-c-virus-to-the-study-of-escape-pathways-of-neutralizing-human-monoclonal-antibody-ar5a
#2
Rodrigo Velázquez-Moctezuma, Mansun Law, Jens Bukh, Jannick Prentoe
Hepatitis C virus (HCV) is a major cause of end-stage liver diseases. With 3-4 million new HCV infections yearly, a vaccine is urgently needed. A better understanding of virus escape from neutralizing antibodies and their corresponding epitopes are important for this effort. However, for viral isolates with high antibody resistance, or antibodies with moderate potency, it remains challenging to induce escape mutations in vitro. Here, as proof-of-concept, we used antibody-sensitive HVR1-deleted (ΔHVR1) viruses to generate escape mutants for a human monoclonal antibody, AR5A, targeting a rare cross-genotype conserved epitope...
February 23, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28230073/%C3%AE-synuclein-transfer-through-tunneling-nanotubes-occurs-in-sh-sy5y-cells-and-primary-brain-pericytes-from-parkinson-s-disease-patients
#3
Birger Victor Dieriks, Thomas I-H Park, Chantelle Fourie, Richard L M Faull, Mike Dragunow, Maurice A Curtis
Parkinson's disease (PD) is characterized by the presence of inclusions known as Lewy bodies, which mainly consist of α-synuclein (α-syn) aggregates. There is growing evidence that α-syn self-propagates in non-neuronal cells, thereby contributing to the progression and spread of PD pathology in the brain. Tunneling nanotubes (TNTs) are long, thin, F-actin-based membranous channels that connect cells and have been proposed to act as conduits for α-syn transfer between cells. SH-SY5Y cells and primary human brain pericytes, derived from postmortem PD brains, frequently form TNTs that allow α-syn transfer and long-distance electrical coupling between cells...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229221/the-raccoon-dog-nyctereutes-procyonoides-and-the-raccoon-procyon-lotor-their-role-and-impact-of-maintaining-and-transmitting-zoonotic-diseases-in-austria-central-europe
#4
Tanja Duscher, Adnan Hodžić, Walter Glawischnig, Georg G Duscher
The neozoan species raccoon dog (Nyctereutes procyonoides) and raccoon (Procyon lotor) are widespread in Europe and potential vectors of many diseases that can threaten human and domestic animal health. Facing a further spread of these species, it is important to know about (i) pathogens imported and/or (ii) pathogens acquired in the new habitat. Thus, we investigated the parasite fauna of wild raccoon dogs and raccoons from Austria, at the edge of their new distribution range. The eight examined raccoons were nearly free of pathogens including Baylisascaris procyonis, and thus assumed to have a low epidemiological impact, so far...
February 23, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28228765/field-performance-of-transgenic-sugarcane-lines-resistant-to-sugarcane-mosaic-virus
#5
Wei Yao, Miaohong Ruan, Lifang Qin, Chuanyu Yang, Rukai Chen, Baoshan Chen, Muqing Zhang
Sugarcane mosaic disease is mainly caused by the sugarcane mosaic virus (SCMV), which can significantly reduce stalk yield and sucrose content of sugarcane in the field. Coat protein mediated protection (CPMP) is an effective strategy to improve virus resistance. A 2-year field study was conducted to compare five independent transgenic sugarcane lines carrying the SCMV-CP gene (i.e., B2, B36, B38, B48, and B51) with the wild-type parental clone Badila (WT). Agronomic performance, resistance to SCMV infection, and transgene stability were evaluated and compared with the wild-type parental clone Badila (WT) at four experimental locations in China across two successive seasons, i...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28228590/a-polymorphism-within-the-internal-fusion-loop-of-the-ebola-virus-glycoprotein-modulates-host-cell-entry
#6
Markus Hoffmann, Lisa Crone, Erik Dietzel, Jennifer Paijo, Mariana González-Hernández, Inga Nehlmeier, Ulrich Kalinke, Stephan Becker, Stefan Pöhlmann
The large scale of the Ebola virus disease (EVD) outbreak in West Africa in 2013-2016 raised the question whether the host cell interactions of the responsible Ebola virus (EBOV) strain differed from those of other ebolaviruses. We previously reported that the glycoprotein (GP) of the virus circulating in West Africa in 2014 (EBOV2014) exhibited reduced ability to mediate entry into two non-human primate (NHP)-derived cell lines relative to the GP of EBOV1976. Here, we investigated the molecular determinants underlying the differential entry efficiency...
February 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28228084/the-development-of-oncoltyic-adenovirus-therapy-in-the-past-and-future-for-the-case-of-pancreatic-cancer
#7
Mizuho Sato-Dahlman, Masato Yamamoto
Pancreatic cancer is an aggressive malignant disease and the efficacy of current treatments for unresectable diseases is quite limited despite recent advances. Gene therapy /virotherapy strategies may provide new options for treatment of various cancers including pancreatic cancer. Oncolytic adenovirus shows an antitumoral effect via its intratumoral amplification and strong cytocidal effect in a variety of cancers and it has been employed for the development of potent oncolytic virotherapy agents for pancreatic cancer...
February 22, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28226721/overcoming-spatio-temporal-limitations-using-dynamically-scaled-in-vitro-pc-mri-a-flow-field-comparison-to-true-scale-computer-simulations-of-idealized-stented-and-patient-specific-left-main-bifurcations
#8
Susann Beier, John Ormiston, Mark Webster, John Cater, Stuart Norris, Pau Medrano-Gracia, Alistair Young, Kathleen Gilbert, Brett Cowan, Susann Beier, John Ormiston, Mark Webster, John Cater, Stuart Norris, Pau Medrano-Gracia, Alistair Young, Kathleen Gilbert, Brett Cowan, Stuart Norris, Brett Cowan, Pau Medrano-Gracia, Kathleen Gilbert, Mark Webster, Alistair Young, Susann Beier, John Cater, John Ormiston
The majority of patients with angina or heart failure have coronary artery disease. Left main bifurcations are particularly susceptible to pathological narrowing. Flow is a major factor of atheroma development, but limitations in imaging technology such as spatio-temporal resolution, signal-to-noise ratio (SNRv), and imaging artefacts prevent in vivo investigations. Computational fluid dynamics (CFD) modelling is a common numerical approach to study flow, but it requires a cautious and rigorous application for meaningful results...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226258/a-new-hypervolume-approach-for-assessing-environmental-risks
#9
Denys Yemshanov, Frank H Koch, Bo Lu, Ronald Fournier, Gericke Cook, Jean J Turgeon
Assessing risks of uncertain but potentially damaging events, such as environmental disturbances, disease outbreaks and pest invasions, is a key analytical step that informs subsequent decisions about how to respond to these events. We present a continuous risk measure that can be used to assess and prioritize environmental risks from uncertain data in a geographical domain. The metric is influenced by both the expected magnitude of risk and its uncertainty. We demonstrate the approach by assessing risks of human-mediated spread of Asian longhorned beetle (ALB, Anoplophora glabripennis) in Greater Toronto (Ontario, Canada)...
February 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28225040/vulnerability-of-the-british-swine-industry-to-classical-swine-fever
#10
Thibaud Porphyre, Carla Correia-Gomes, Margo E Chase-Topping, Kokouvi Gamado, Harriet K Auty, Ian Hutchinson, Aaron Reeves, George J Gunn, Mark E J Woolhouse
Classical swine fever (CSF) is a notifiable, highly contagious viral disease of swine which results in severe welfare and economic consequences in affected countries. To improve preparedness, it is critical to have some understanding of how CSF would spread should it be introduced. Based on the data recorded during the 2000 epidemic of CSF in Great Britain (GB), a spatially explicit, premises-based model was developed to explore the risk of CSF spread in GB. We found that large outbreaks of CSF would be rare and generated from a limited number of areas in GB...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28223683/metataxonomics-reveal-vultures-as-a-reservoir-for-clostridium-perfringens
#11
Xiangli Meng, Shan Lu, Jing Yang, Dong Jin, Xiaohong Wang, Xiangning Bai, Yumeng Wen, Yiting Wang, Lina Niu, Changyun Ye, Ramon Rosselló-Móra, Jianguo Xu
The Old World vulture may carry and spread pathogens for emerging infections since they feed on the carcasses of dead animals and participate in the sky burials of humans, some of whom have died from communicable diseases. Therefore, we studied the precise fecal microbiome of the Old World vulture with metataxonomics, integrating the high-throughput sequencing of almost full-length small subunit ribosomal RNA (16S rRNA) gene amplicons in tandem with the operational phylogenetic unit (OPU) analysis strategy...
February 22, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28223209/langmuir-schaefer-film-deposition-onto-honeycomb-porous-films-for-retinal-tissue-engineering
#12
Maria Teresa Calejo, Tanja Ilmarinen, Elina Vuorimaa-Laukkanen, Elina Talvitie, Hanna M Hakola, Heli Skottman, Minna Kellomäki
: Age-related macular degeneration (AMD) is the leading cause of vision loss in senior citizens in the developed world. The disease is characterised by the degeneration of a specific cell layer at the back of the eye - the retinal pigment epithelium (RPE), which is essential in retinal function. The most promising therapeutic option to restore the lost vision is considered to be RPE cell transplantation. This work focuses on the development of biodegradable biomaterials with similar properties to the native Bruch's membrane as carriers for RPE cells...
February 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28222162/optimal-combinations-of-control-strategies-and-cost-effective-analysis-for-visceral-leishmaniasis-disease-transmission
#13
Santanu Biswas, Abhishek Subramanian, Ibrahim M ELMojtaba, Joydev Chattopadhyay, Ram Rup Sarkar
Visceral leishmaniasis (VL) is a deadly neglected tropical disease that poses a serious problem in various countries all over the world. Implementation of various intervention strategies fail in controlling the spread of this disease due to issues of parasite drug resistance and resistance of sandfly vectors to insecticide sprays. Due to this, policy makers need to develop novel strategies or resort to a combination of multiple intervention strategies to control the spread of the disease. To address this issue, we propose an extensive SIR-type model for anthroponotic visceral leishmaniasis transmission with seasonal fluctuations modeled in the form of periodic sandfly biting rate...
2017: PloS One
https://www.readbyqxmd.com/read/28222111/a-meta-analysis-of-the-abscopal-effect-in-preclinical-models-is-the-biologically-effective-dose-a-relevant-physical-trigger
#14
Raffaella Marconi, Silvia Strolin, Gianluca Bossi, Lidia Strigari
BACKGROUND: Preclinical in vivo studies using small animals are considered crucial in translational cancer research and clinical implementation of novel treatments. This is of paramount relevance in radiobiology, especially for any technological developments permitted to deliver high doses in single or oligo-fractionated regimens, such as stereotactic ablative radiotherapy (SABR). In this context, clinical success in cancer treatment needs to be guaranteed, sparing normal tissue and preventing the potential spread of disease or local recurrence...
2017: PloS One
https://www.readbyqxmd.com/read/28221972/control-points-to-reduce-movement-of-central-nervous-system-tissue-during-beef-slaughter
#15
J L Aalhus, R D Thacker, I L Larsen, J C Roberts, M A Price, M Juárez
Consumption of central nervous system tissue (CNST) from cattle with bovine spongiform encephalopathy (BSE) is thought to cause the human neurological disease, variant Creutzfeldt-Jacob disease. To identify points of cross-contamination of beef carcasses with CNST, 55 young beef cattle were slaughtered and processed through a federally inspected multispecies abattoir. The objectives of this study were to evaluate CNST spread following the placement of a plug in the penetration site of the skull after captive bolt stunning, to evaluate cross-contamination of carcasses before and after splitting, to compare the effects of hot water pasteurization (84°C for 10 s) versus cold water wash (10°C for 30 s) for reducing CNST on the carcass, and to examine other possible sources of cross-contamination in the abattoir...
February 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28221908/content-analysis-of-vomit-and-diarrhea-cleanup-procedures-to-prevent-norovirus-infections-in-retail-and-food-service-operations
#16
Morgan G Chao, Anne-Julie Dubé, Cortney M Leone, Christina M Moore, Angela M Fraser
Human noroviruses are the leading cause of foodborne disease in the United States, sickening 19 to 21 million Americans each year. Vomit and diarrhea are both highly concentrated sources of norovirus particles. For this reason, establishing appropriate cleanup procedures for these two substances is critical. Food service establishments in states that have adopted the 2009 or 2013 U.S. Food and Drug Administration Food Code are required to have a program detailing specific cleanup procedures. The aim of our study was to determine the alignment of existing vomit and diarrhea cleanup procedures with the 11 elements recommended in Annex 3 of the 2011 Supplement to the 2009 Food Code and to determine their readability and clarity of presentation...
November 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221880/spread-of-a-major-clone-of-salmonella-enterica-serotype-enteritidis-in-poultry-and-in-salmonellosis-outbreaks-in-southern-brazil
#17
Karen Apellanis Borges, Thales Quedi Furian, Sara Neves de Souza, Eduardo César Tondo, André Felipe Streck, Carlos Tadeu Pippi Salle, Hamilton Luiz de Souza Moraes, Vladimir Pinheiro do Nascimento
Salmonella spp. are among the most important agents of foodborne diseases all over the world. Human Salmonella outbreaks are often associated with the consumption of poultry products (meat and eggs), and one of the most prevalent serotypes associated with these products is Salmonella Enteritidis. Brazil is one of the most important poultry exporters in the world. In southern Brazil, three closely related clones of Salmonella Enteritidis have been responsible for the majority of foodborne Salmonella outbreaks over the past decade...
January 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28221822/clinical-characteristics-and-spatial-distribution-of-visceral-leishmaniasis-in-children-in-s%C3%A3-o-paulo-state-an-emerging-focus-of-visceral-leishmaniasis-in-brazil
#18
Patricia Rodrigues Naufal Spir, Luiz Euribel Prestes-Carneiro, Elivelton Silva Fonseca, Aline Dayse, Rogério Giuffrida, Lourdes Aparecida Zampieri D'Andrea
BACKGROUND: Visceral leishmaniasis (VL) is an emerging zoonosis, and Brazil harbors about 90% of those infected in Latin America. Since 1998, the disease has been spreading quickly in São Paulo state, and the western region is considered an emerging focus of VL in Brazil. Our aim was to evaluate the clinical characteristics and spatial distribution of VL in children referred to a public tertiary hospital located in the western region of São Paulo state, Brazil. METHODS: Medical records of children up to 18 years of age who were diagnosed with VL between January 2006 and December 2010 were reviewed...
February 21, 2017: Pathogens and Global Health
https://www.readbyqxmd.com/read/28220748/epidemiology-of-mycobacterium-bovis-disease-in-humans-in-england-wales-and-northern-ireland-2002-2014
#19
Jennifer A Davidson, Miranda G Loutet, Catherine O'Connor, Cathriona Kearns, Robert M M Smith, Maeve K Lalor, H Lucy Thomas, Ibrahim Abubakar, Dominik Zenner
Despite control efforts, Mycobacterium bovis incidence among cattle remains high in parts of England, Wales, and Northern Ireland, attracting political and public health interest in potential spread from animals to humans. To determine incidence among humans and to identify associated factors, we conducted a retrospective cohort analysis of human M. bovis cases in England, Wales, and Northern Ireland during 2002-2014. We identified 357 cases and observed increased annual case numbers (from 17 to 35) and rates...
March 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28220635/kyasanur-forest-disease-virus-breaking-the-endemic-barrier-an%C3%A2-investigation-into-ecological-effects-on-disease-emergence-and-future-outlook
#20
K Ajesh, B K Nagaraja, K Sreejith
Kyasanur Forest disease (KFD) is found in a limited range of India, but is epidemiologically understudied. The seasonal patterns of KFD are well known; however, the significant concern is on the extent to which changes in epidemiology happen especially under the influence of ecological destructions and by the eventual effects of resulting climate change. Presently, a southward and northward spread of the Kyasanur Forest disease virus (KFDV) along the Western Ghats has been reported in the adjoining states of Kerala, Tamil Nadu, Goa and Maharashtra...
February 20, 2017: Zoonoses and Public Health
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