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Advances in Virus Research

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https://www.readbyqxmd.com/read/29029730/assessing-the-diversity-of-rodent-borne-viruses-exploring-of-high-throughput-sequencing-and-classical-amplification-sequencing-approaches
#1
Stephan Drewes, Petra Straková, Jan F Drexler, Jens Jacob, Rainer G Ulrich
Rodents are distributed throughout the world and interact with humans in many ways. They provide vital ecosystem services, some species are useful models in biomedical research and some are held as pet animals. However, many rodent species can have adverse effects such as damage to crops and stored produce, and they are of health concern because of the transmission of pathogens to humans and livestock. The first rodent viruses were discovered by isolation approaches and resulted in break-through knowledge in immunology, molecular and cell biology, and cancer research...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029729/schmallenberg-virus-a-novel-virus-of-veterinary-importance
#2
Kerstin Wernike, Martin Beer
In late 2011, unspecific clinical symptoms such as fever, diarrhea, and decreased milk production were observed in dairy cattle in the Dutch/German border region. After exclusion of classical endemic and emerging viruses by targeted diagnostic systems, blood samples from acutely diseased cows were subjected to metagenomics analysis. An insect-transmitted orthobunyavirus of the Simbu serogroup was identified as the causative agent and named Schmallenberg virus (SBV). It was one of the first detections of the introduction of a novel virus of veterinary importance to Europe using the new technology of next-generation sequencing...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029728/software-dedicated-to-virus-sequence-analysis-bioinformatics-goes-viral
#3
Martin Hölzer, Manja Marz
Computer-assisted technologies of the genomic structure, biological function, and evolution of viruses remain a largely neglected area of research. The attention of bioinformaticians to this challenging field is currently unsatisfying in respect to its medical and biological importance. The power of new genome sequencing technologies, associated with new tools to handle "big data", provides unprecedented opportunities to address fundamental questions in virology. Here, we present an overview of the current technologies, challenges, and advantages of Next-Generation Sequencing (NGS) in relation to the field of virology...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029727/the-recently-discovered-bokeloh-bat-lyssavirus-insights-into-its-genetic-heterogeneity-and-spatial-distribution-in-europe-and-the-population-genetics-of-its-primary-host
#4
Elisa Eggerbauer, Cécile Troupin, Karsten Passior, Florian Pfaff, Dirk Höper, Antonie Neubauer-Juric, Stephanie Haberl, Christiane Bouchier, Thomas C Mettenleiter, Hervé Bourhy, Thomas Müller, Laurent Dacheux, Conrad M Freuling
In 2010, a novel lyssavirus named Bokeloh bat lyssavirus (BBLV) was isolated from a Natterer's bat (Myotis nattereri) in Germany. Two further viruses were isolated in the same country and in France in recent years, all from the same bat species and all found in moribund or dead bats. Here we report the description and the full-length genome sequence of five additional BBLV isolates from Germany (n=4) and France (n=1). Interestingly, all of them were isolated from the Natterer's bat, except one from Germany, which was found in a common Pipistrelle bat (Pipistrellus pipistrellus), a widespread and abundant bat species in Europe...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029726/loeffler-4-0-diagnostic-metagenomics
#5
Dirk Höper, Claudia Wylezich, Martin Beer
A new world of possibilities for "virus discovery" was opened up with high-throughput sequencing becoming available in the last decade. While scientifically metagenomic analysis was established before the start of the era of high-throughput sequencing, the availability of the first second-generation sequencers was the kick-off for diagnosticians to use sequencing for the detection of novel pathogens. Today, diagnostic metagenomics is becoming the standard procedure for the detection and genetic characterization of new viruses or novel virus variants...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029725/bluetongue-virus-from-btv-1-to-btv-27
#6
Guillaume Belbis, Stéphan Zientara, Emmanuel Bréard, Corinne Sailleau, Grégory Caignard, Damien Vitour, Houssam Attoui
Bluetongue virus (BTV) is the type species of genus Orbivirus within family Reoviridae. Bluetongue virus is transmitted between its ruminant hosts by the bite of Culicoides spp. midges. Severe BT cases are characterized by symptoms including hemorrhagic fever, particularly in sheep, loss of productivity, and death. To date, 27 BTV serotypes have been documented. These include novel isolates of atypical BTV, which have been almost fully characterized using deep sequencing technologies and do not rely on Culicoides vectors for their transmission among hosts...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029724/new-leaves-in-the-growing-tree-of-pestiviruses
#7
Sandra Blome, Martin Beer, Kerstin Wernike
Pestiviruses are a group of viruses of veterinary importance infecting livestock animals like pigs, cattle, and sheep, and also wildlife animals like wild boar and different deer species. While for decades only four classical species (Classical swine fever virus, Bovine viral diarrhea virus types 1 and 2, Border disease virus), and a few so-called atypical pestiviruses were known (e.g., Giraffe virus, Pronghorn virus, HoBi virus), a series of novel pestiviruses was identified in the last years (Bungowannah virus, Bat pestivirus, Norway rat pestivirus, Atypical porcine pestivirus, LINDA virus)...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029723/the-expanding-field-of-mammalian-astroviruses-opportunities-and-challenges-in-clinical-virology
#8
Céline L Boujon, Michel C Koch, Torsten Seuberlich
Astroviruses are best known as being one of the leading causes of diarrhea in infants and were first described in this context in 1975. In its first years, astrovirus research was mainly restricted to electron microscopy and serology studies. The ability to culture some of these viruses in vitro allowed a first consequent step forward, especially at the molecular level. Since the emergence of more powerful genetic methods, though, the face of this research field has dramatically changed and evolved. From the exponential number of discoveries of new astrovirus strains in the most varied of animal species to their association with atypical diseases, these viruses revealed a lot of surprises, and many more are probably still waiting to be uncovered...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029722/the-first-virus-hunters
#9
Thomas C Mettenleiter
The history of virology is a history of conceptual and technological inventions and breakthroughs. The development of filters made of porcelain or kieselgur by the end of the 19th century which withheld bacteria allowed the identification of infectious agents smaller than bacteria and noncultivable on the media known at that time and used to grow bacteria. Even finer-grain filters resulted in the observation that the ultravisible novel infectious agents are in fact of particulate nature. Infections of plants and animals were the first to be attributed to these tiny entities...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28433053/the-envelope-proteins-of-the-bunyavirales
#10
Pablo Guardado-Calvo, Félix A Rey
The Bunyavirales Order encompasses nine families of enveloped viruses containing a single-stranded negative-sense RNA genome divided into three segments. The small (S) and large (L) segments encode proteins participating in genome replication in the infected cell cytoplasm. The middle (M) segment encodes the viral glycoproteins Gn and Gc, which are derived from a precursor polyprotein by host cell proteases. Entry studies are available only for a few viruses in the Order, and in each case they were shown to enter cells via receptor-mediated endocytosis...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28433052/metabolomics-strategies-to-define-the-role-of-metabolism-in-virus-infection-and-pathogenesis
#11
Marianne Manchester, Anisha Anand
Metabolomics is an analytical profiling technique for measuring and comparing large numbers of metabolites present in biological samples. Combining high-throughput analytical chemistry and multivariate data analysis, metabolomics offers a window on metabolic mechanisms. Because they intimately utilize and often rewire host metabolism, viruses are an excellent choice to study by metabolomics techniques. Studies of the effects of viruses on metabolism during replication in vitro and infection in animal models or human subjects have provided novel insights into these networks and provided new targets for therapy and biomarker development...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28433051/insect-specific-viruses-a-historical-overview-and-recent-developments
#12
Christopher M Roundy, Sasha R Azar, Shannan L Rossi, Scott C Weaver, Nikos Vasilakis
Arthropod-borne viruses (arboviruses) have in recent years become a tremendous global health concern resulting in substantial human morbidity and mortality. With the widespread utilization of molecular technologies such as next-generation sequencing and the advancement of bioinformatics tools, a new age of viral discovery has commenced. Many of the novel agents being discovered in recent years have been isolated from mosquitoes and exhibit a highly restricted host range. Strikingly, these insect-specific viruses have been found to be members of viral families traditionally associated with human arboviral pathogens, including but not limited to the families Flaviviridae, Togaviridae, Reoviridae, and Bunyaviridae...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28433050/zoonotic-potential-of-emerging-paramyxoviruses-knowns-and-unknowns
#13
Patricia A Thibault, Ruth E Watkinson, Andres Moreira-Soto, Jan F Drexler, Benhur Lee
The risk of spillover of enzootic paramyxoviruses and the susceptibility of recipient human and domestic animal populations are defined by a broad collection of ecological and molecular factors that interact in ways that are not yet fully understood. Nipah and Hendra viruses were the first highly lethal zoonotic paramyxoviruses discovered in modern times, but other paramyxoviruses from multiple genera are present in bats and other reservoirs that have unknown potential to spillover into humans. We outline our current understanding of paramyxovirus reservoir hosts and the ecological factors that may drive spillover, and we explore the molecular barriers to spillover that emergent paramyxoviruses may encounter...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28057260/a-renaissance-in-nepovirus-research-provides-new-insights-into-their-molecular-interface-with-hosts-and-vectors
#14
REVIEW
M Fuchs, C Schmitt-Keichinger, H Sanfaçon
Nepoviruses supplied seminal landmarks to the historical trail of plant virology. Among the first agriculturally relevant viruses recognized in the late 1920s and among the first plant viruses officially classified in the early 1970s, nepoviruses also comprise the first species for which a soil-borne ectoparasitic nematode vector was identified. Early research on nepoviruses shed light on the genome structure and expression, biological properties of the two genomic RNAs, and mode of transmission. In recent years, research on nepoviruses enjoyed an extraordinary renaissance...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28057259/modified-vaccinia-virus-ankara-history-value-in-basic-research-and-current-perspectives-for-vaccine-development
#15
REVIEW
A Volz, G Sutter
Safety tested Modified Vaccinia virus Ankara (MVA) is licensed as third-generation vaccine against smallpox and serves as a potent vector system for development of new candidate vaccines against infectious diseases and cancer. Historically, MVA was developed by serial tissue culture passage in primary chicken cells of vaccinia virus strain Ankara, and clinically used to avoid the undesirable side effects of conventional smallpox vaccination. Adapted to growth in avian cells MVA lost the ability to replicate in mammalian hosts and lacks many of the genes orthopoxviruses use to conquer their host (cell) environment...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28057258/nonsegmented-negative-sense-rna-viruses-structural-data-bring-new-insights-into-nucleocapsid-assembly
#16
REVIEW
M Jamin, F Yabukarski
Viruses with a nonsegmented negative-sense RNA genome (NNVs) include important human pathogens as well as life-threatening zoonotic viruses. These viruses share a common RNA replication complex, including the genomic RNA and three proteins, the nucleoprotein (N), the phosphoprotein (P), and the RNA-dependent RNA polymerase (L). During genome replication, the RNA polymerase complex first synthesizes positive-sense antigenomes, which in turn serve as template for the production of negative-sense progeny genomes...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28057257/have-nec-coat-will-travel-structural-basis-of-membrane-budding-during-nuclear-egress-in-herpesviruses
#17
REVIEW
J M Bigalke, E E Heldwein
Herpesviruses are unusual among enveloped viruses because they bud twice yet acquire a single envelope. Furthermore, unlike other DNA viruses that replicate in the nucleus, herpesviruses do not exit it by passing through the nuclear pores or by rupturing the nuclear envelope. Instead, herpesviruses have a complex mechanism of nuclear escape whereby nascent capsids bud at the inner nuclear membrane to form perinuclear virions that subsequently fuse with the outer nuclear membrane, releasing capsids into the cytosol...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28057256/biomedical-and-catalytic-opportunities-of-virus-like-particles-in-nanotechnology
#18
REVIEW
B Schwarz, M Uchida, T Douglas
Within biology, molecules are arranged in hierarchical structures that coordinate and control the many processes that allow for complex organisms to exist. Proteins and other functional macromolecules are often studied outside their natural nanostructural context because it remains difficult to create controlled arrangements of proteins at this size scale. Viruses are elegantly simple nanosystems that exist at the interface of living organisms and nonliving biological machines. Studied and viewed primarily as pathogens to be combatted, viruses have emerged as models of structural efficiency at the nanoscale and have spurred the development of biomimetic nanoparticle systems...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/27712629/preface
#19
EDITORIAL
John Ziebuhr
No abstract text is available yet for this article.
2016: Advances in Virus Research
https://www.readbyqxmd.com/read/27712628/the-nonstructural-proteins-directing-coronavirus-rna-synthesis-and-processing
#20
REVIEW
E J Snijder, E Decroly, J Ziebuhr
Coronaviruses are animal and human pathogens that can cause lethal zoonotic infections like SARS and MERS. They have polycistronic plus-stranded RNA genomes and belong to the order Nidovirales, a diverse group of viruses for which common ancestry was inferred from the common principles underlying their genome organization and expression, and from the conservation of an array of core replicase domains, including key RNA-synthesizing enzymes. Coronavirus genomes (~26-32 kilobases) are the largest RNA genomes known to date and their expansion was likely enabled by acquiring enzyme functions that counter the commonly high error frequency of viral RNA polymerases...
2016: Advances in Virus Research
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