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https://www.readbyqxmd.com/read/28080994/global-food-and-fibre-security-threatened-by-current-inefficiencies-in-fungal-identification
#1
REVIEW
Pedro W Crous, Johannes Z Groenewald, Bernard Slippers, Michael J Wingfield
Fungal pathogens severely impact global food and fibre crop security. Fungal species that cause plant diseases have mostly been recognized based on their morphology. In general, morphological descriptions remain disconnected from crucially important knowledge such as mating types, host specificity, life cycle stages and population structures. The majority of current fungal species descriptions lack even the most basic genetic data that could address at least some of these issues. Such information is essential for accurate fungal identifications, to link critical metadata and to understand the real and potential impact of fungal pathogens on production and natural ecosystems...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28077064/an-internet-based-bioinformatics-toolkit-for-plant-biosecurity-diagnosis-and-surveillance-of-viruses-and-viroids
#2
Roberto A Barrero, Kathryn R Napier, James Cunnington, Lia Liefting, Sandi Keenan, Rebekah A Frampton, Tamas Szabo, Simon Bulman, Adam Hunter, Lisa Ward, Mark Whattam, Matthew I Bellgard
BACKGROUND: Detection and preventing entry of exotic viruses and viroids at the border is critical for protecting plant industries trade worldwide. Existing post entry quarantine screening protocols rely on time-consuming biological indicators and/or molecular assays that require knowledge of infecting viral pathogens. Plants have developed the ability to recognise and respond to viral infections through Dicer-like enzymes that cleave viral sequences into specific small RNA products. Many studies reported the use of a broad range of small RNAs encompassing the product sizes of several Dicer enzymes involved in distinct biological pathways...
January 11, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28074376/synthetic-biology-genome-editing-and-the-risk-of-bioterrorism
#3
Marko Ahteensuu
The SynBioSecurity argument says that synthetic biology introduces new risks of intentional misuse of synthetic pathogens and that, therefore, there is a need for extra regulations and oversight. This paper provides an analysis of the argument, sets forth a new version of it, and identifies three developments that raise biosecurity risks compared to the situation earlier. The developments include (1) a spread of the required know-how, (2) improved availability of the techniques, instruments and biological parts, and (3) new technical possibilities such as "resurrecting" disappeared pathogens...
January 10, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/28068184/antimicrobial-susceptibilities-of-flavobacterium-psychrophilum-isolates-from-the-great-lakes-basin-michigan
#4
Danielle Van Vliet, Thomas P Loch, Peter Smith, Mohamed Faisal
Flavobacterium psychrophilum is a serious pathogen of salmonids worldwide, a matter that is compounded by the lack of effective vaccine preparations. As a result, biosecurity measures and antimicrobial agents remain the only available methods to control diseases caused by F. psychrophilum. It is feared that antimicrobial use may have led to the development of F. psychrophilum strains with reduced susceptibility. Therefore, the primary objective of this study was to determine the antimicrobial susceptibility profiles of 50 F...
January 9, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28060913/analysis-of-the-spatial-organization-of-pastures-as-a-contact-network-implications-for-potential-disease-spread-and-biosecurity-in-livestock-france-2010
#5
Aurore Palisson, Aurélie Courcoul, Benoit Durand
The use of pastures is part of common herd management practices for livestock animals, but contagion between animals located on neighbouring pastures is one of the major modes of infectious disease transmission between herds. At the population level, this transmission is strongly constrained by the spatial organization of pastures. The aim of this study was to answer two questions: (i) is the spatial configuration of pastures favourable to the spread of infectious diseases in France? (ii) would biosecurity measures allow decreasing this vulnerability? Based on GIS data, the spatial organization of pastures was represented using networks...
2017: PloS One
https://www.readbyqxmd.com/read/28057035/control-and-eradication-of-porcine-reproductive-and-respiratory-syndrome-virus-type-2-using-a-modified-live-type-2-vaccine-in-combination-with-a-load-close-homogenise-model-an-area-elimination-study
#6
Poul H Rathkjen, Johannes Dall
BACKGROUND: Porcine reproductive and respiratory syndrome virus (PRRSV) causes significant animal and economic losses worldwide. The infection is difficult to control and PRRSV elimination at local level requires coordinated intervention among multiple farms. This case study describes a successful elimination of PRRSV from all 12 herds on the Horne Peninsula, Denmark, using a combination of load, close, homogenise (LCH) using PRRSV type 2 modified-live vaccine, optimised pig flow, and'10 Golden Rules' (10GR) for biosecurity management...
January 5, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28052113/zoonoses-in-veterinary-students-a-systematic-review-of-the-literature
#7
Antonio Sánchez, Miranda Prats-van der Ham, Juan Tatay-Dualde, Ana Paterna, Christian de la Fe, Ángel Gómez-Martín, Juan C Corrales, Antonio Contreras
BACKGROUND: Veterinary students face diverse potential sources of zoonotic pathogens since the first years of their academic degree. Such sources include different animal species and pathologic materials which are used at university facilities as well as commercial clinics, farms and other external facilities. OBJECTIVES: The present study utilizes a systematic review of the literature to identify zoonoses described in veterinary students. DATA SOURCES: Web of Science and PubMed...
2017: PloS One
https://www.readbyqxmd.com/read/28051966/operational-perspective-of-lessons-learned-from-the-ebola-crisis
#8
Zygmunt F Dembek, Jerry L Mothershead, Tesema Chekol, David B Myers, Ronald G Meris, Dana Meranus, Aiguo Wu
Given its potential to quickly spread internationally and initially uncontrollable nature, the 2014 to 2015 Ebola outbreak has implications for global biosecurity. The Defense Threat Reduction Agency's Technical Reachback provided near real-time analysis and recommendations as outbreak-relevant events unfolded. Our review of often-conflicting or incomplete information was required to answer policy decision makers about the expanding Ebola epidemic, and enable the formulation of best-possible U.S. Department of Defense and Government response...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28039426/yeast-an-overlooked-component-of-bactrocera-tryoni-diptera-tephritidae-larval-gut-microbiota
#9
Ania T Deutscher, Olivia L Reynolds, Toni A Chapman
Yeasts, often in hydrolyzed form, are key ingredients in the larval and adult diets of tephritid fruit fly colonies. However, very little is known about the presence or role of yeasts in the diets of tephritid fruit flies in nature. Previous studies have identified bacteria but not detected yeasts in the gut of Queensland fruit fly, Bactrocera tryoni (Froggatt), one of Australia's most economically damaging insect pests of horticultural crops and of significant biosecurity concern domestically and internationally...
December 29, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28025658/microorganisms-good-or-evil-mirri-provides-biosecurity-awareness
#10
David Smith, Dunja Martin, Tatyana Novossiolova
The life-science community is a key stakeholder in the effort to ensure that the advances in biotechnology are not misused. Unfortunately, to date, the engagement of life scientists with issues of biosecurity has been limited. Microorganisms have been harnessed for the benefit of humankind but in the wrong hands could be used in direct or indirect acts against humans, livestock, crops, food, water infrastructure and other economically valuable entities. The Microbial Resources Research Infrastructure in its preparatory phase has addressed the topic implementing a code of conduct as part of its programme of prevention of malicious use and continues to work with the international community to raise awareness of best practice to avoid misuse of microorganisms...
December 26, 2016: Current Microbiology
https://www.readbyqxmd.com/read/28025479/housing-of-cull-sows-in-the-hours-before-transport-to-the-abattoir-an-initial-description-of-sow-behaviour-while-waiting-in-a-transfer-vehicle
#11
Mette S Herskin, Katrine K Fogsgaard, Ditte Erichsen, Mia Bonnichsen, Charlotte Gaillard, Karen Thodberg
In modern pig production, sows are transported by road to abattoirs. For reasons of biosecurity, commercial trucks may have limited access to farms. According to Danish regulations, sows can be kept in stationary transfer vehicles away from the farm for up to two hours before being loaded onto the commercial truck. We aimed to describe the behaviour of sows in transfer vehicles. This preliminary, exploratory study included data from 11 loads from a total of six Danish sow herds. Selection of animals to be slaughtered was done by the farmers...
December 22, 2016: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28024856/newcastle-disease-vaccines-a-solved-problem-or-a-continuous-challenge
#12
Kiril M Dimitrov, Claudio L Afonso, Qingzhong Yu, Patti J Miller
Newcastle disease (ND) has been defined by the World Organisation for Animal Health as infection of poultry with virulent strains of Newcastle disease virus (NDV). Lesions affecting the neurological, gastrointestinal, respiratory, and reproductive systems are most often observed. The control of ND must include strict biosecurity that prevents virulent NDV from contacting poultry, and also proper administration of efficacious vaccines. When administered correctly to healthy birds, ND vaccines formulated with NDV of low virulence or viral-vectored vaccines that express the NDV fusion protein are able to prevent clinical disease and mortality in chickens upon infection with virulent NDV...
December 16, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/28024457/haemorrhagic-enteritis-of-turkeys-current-knowledge
#13
Kuldeep Dhama, Vasudevan Gowthaman, Kumaragurubaran Karthik, Ruchi Tiwari, Swati Sachan, M Asok Kumar, M Palanivelu, Yashpal Singh Malik, Raj Kumar Singh, Muhammad Munir
Haemorrhagic enteritis virus (HEV), an adenovirus associated with acute hemorrhagic gastro-intestinal disease of 6-11 weeks old turkeys predominantly hampers both humoral and cellular immunity. Affected birds are more prone to secondary complications (like colibacillosis and clostridiosis) and failure to mount an effective vaccine-induced immune response. HEV belongs to the new genus Siadenovirus. Feco-oral transmission is the main route of entry of the virus and it mainly colonizes bursa, intestine and spleen...
December 27, 2016: Veterinary Quarterly
https://www.readbyqxmd.com/read/28018330/porcine-epidemic-diarrhea-virus-shedding-and-antibody-response-in-swine-farms-a-longitudinal-study
#14
Cristina Bertasio, Enrico Giacomini, Massimiliano Lazzaro, Simona Perulli, Alice Papetti, Antonio Lavazza, Davide Lelli, Giovanni Alborali, Maria B Boniotti
The porcine epidemic diarrhea virus (PEDV) causes an acute and highly contagious enteric disease characterized by severe enteritis, vomiting, watery diarrhea, and a high mortality rate in seronegative neonatal piglets. In the last few years, PED had a large economic impact on the swine industries in Asia and the US, and in 2014, the PEDV also re-emerged in Europe. Two main PEDV variants circulate worldwide but only the S INDEL variant, considered a mild strain, is spreading in Europe. To gain insights into the pathogenicity of this variant, its viral load and temporal shedding pattern were evaluated in piglets from infected farms...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28017454/assessment-of-factors-influencing-the-within-batch-seroprevalence-of-human-enteropathogenic-yersinia-spp-of-pigs-at-slaughter-age-and-the-analogy-with-microbiology
#15
G Vanantwerpen, D Berkvens, L De Zutter, K Houf
The microbiologically and serologically-based prevalence of human enteropathogenic Yersinia spp. at moment of slaughter varies between pig farms due to different herd-level factors. A face-to-face questionnaire concerning a broad range of farm aspects (e.g., management and housing system, biosecurity, and hygiene measurements) was performed on one hundred farms. Factors influencing the seropositivity of 7047 pigs against human pathogenic Yersinia spp. were determined and compared to the microbiology. At the slaughterhouse, pieces of diafragm of on average 70 slaughter pigs per batch were sampled to determine the level of antibodies against enteropathogenic Yersinia spp...
December 5, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28013250/ecological-disequilibrium-drives-insect-pest-and-pathogen-accumulation-in-non-native-trees
#16
REVIEW
Casparus J Crous, Treena I Burgess, Johannes J Le Roux, David M Richardson, Bernard Slippers, Michael J Wingfield
Non-native trees have become dominant components of many landscapes, including urban ecosystems, commercial forestry plantations, fruit orchards, and as invasives in natural ecosystems. Often, these trees have been separated from their natural enemies (i.e. insects and pathogens) leading to ecological disequilibrium, that is, the immediate breakdown of historically co-evolved interactions once introduced into novel environments. Long-established, non-native tree plantations provide useful experiments to explore the dimensions of such ecological disequilibria...
December 23, 2016: AoB Plants
https://www.readbyqxmd.com/read/27995742/tracking-the-amphibian-pathogens-batrachochytrium-dendrobatidis-and-batrachochytrium-salamandrivorans-using-a-highly-specific-monoclonal-antibody-and-lateral-flow-technology
#17
Michael J Dillon, Andrew E Bowkett, Michael J Bungard, Katie M Beckman, Michelle F O'Brien, Kieran Bates, Matthew C Fisher, Jamie R Stevens, Christopher R Thornton
The fungus Batrachochytrium dendrobatidis (Bd) causes chytridiomycosis, a lethal epizootic disease of amphibians. Rapid identification of the pathogen and biosecurity is essential to prevent its spread, but current laboratory-based tests are time-consuming and require specialist equipment. Here, we describe the generation of an IgM monoclonal antibody (mAb), 5C4, specific to Bd as well as the related salamander and newt pathogen Batrachochytrium salamandrivorans (Bsal). The mAb, which binds to a glycoprotein antigen present on the surface of zoospores, sporangia and zoosporangia, was used to develop a lateral-flow assay (LFA) for rapid (15 min) detection of the pathogens...
December 19, 2016: Microbial Biotechnology
https://www.readbyqxmd.com/read/27980133/bovine-tb-scheme-to-recognise-farmers-who-practise-good-biosecurity
#18
(no author information available yet)
No abstract text is available yet for this article.
December 17, 2016: Veterinary Record
https://www.readbyqxmd.com/read/27976599/helminth-parasites-of-finfish-commercial-aquaculture-in-latin-america
#19
L C Soler-Jiménez, A I Paredes-Trujillo, V M Vidal-Martínez
Latin America has tripled production by aquaculture up to 78 million tonnes in the past 20 years. However, one of the problems that aquaculture is facing is the presence of helminth parasites and the diseases caused by them in the region. In this review we have collected all the available information on helminths affecting commercial aquaculture in Latin America and the Caribbean (LAC), emphasizing those causing serious economic losses. Monogeneans are by far the most common and aggressive parasites affecting farmed fish in LAC...
December 15, 2016: Journal of Helminthology
https://www.readbyqxmd.com/read/27976462/global-thermal-niche-models-of-two-european-grasses-show-high-invasion-risks-in-antarctica
#20
Luis R Pertierra, Pedro Aragón, Justine D Shaw, Dana M Bergstrom, Aleks Terauds, Miguel Ángel Olalla-Tárraga
The two non-native grasses that have established long-term populations in Antarctica (Poa pratensis and Poa annua) were studied from a global multidimensional thermal niche perspective to address the biological invasion risk to Antarctica. These two species exhibit contrasting introduction histories and reproductive strategies and represent two referential case studies of biological invasion processes. We used a multistep process with a range of species distribution modelling techniques (ecological niche factor analysis, multidimensional envelopes, distance/entropy algorithms) together with a suite of thermoclimatic variables, to characterize the potential ranges of these species...
December 14, 2016: Global Change Biology
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