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Advances in Virus Research

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https://www.readbyqxmd.com/read/29551146/preface-to-volume-100-history-and-looking-forward
#1
EDITORIAL
Thomas C Mettenleiter, Margaret Kielian, Marilyn J Roossinck
No abstract text is available yet for this article.
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551145/viruses-of-plant-interacting-fungi
#2
Bradley I Hillman, Aulia Annisa, Nobuhiro Suzuki
Plant-associated fungi are infected by viruses at the incidence rates from a few % to over 90%. Multiple viruses often coinfect fungal hosts, and occasionally alter their phenotypes, but most of the infections are asymptomatic. Phenotypic alterations are grouped into two types: harmful or beneficial to the host fungi. Harmful interactions between viruses and hosts include hypovirulence and/or debilitation that are documented in a number of phytopathogenic fungi, exemplified by the chestnut blight, white root rot, and rapeseed rot fungi...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551144/morbillivirus-pathogenesis-and-virus-host-interactions
#3
Kristin Pfeffermann, Mareike Dörr, Florian Zirkel, Veronika von Messling
Despite the availability of safe and effective vaccines against measles and several animal morbilliviruses, they continue to cause regular outbreaks and epidemics in susceptible populations. Morbilliviruses are highly contagious and share a similar pathogenesis in their respective hosts. This review provides an overview of morbillivirus history and the general replication cycle and recapitulates Morbillivirus pathogenesis focusing on common and unique aspects seen in different hosts. It also summarizes the state of knowledge regarding virus-host interactions on the cellular level with an emphasis on viral interference with innate immune response activation, and highlights remaining knowledge gaps...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551143/african-swine-fever-virus-biology-and-vaccine-approaches
#4
Yolanda Revilla, Daniel Pérez-Núñez, Juergen A Richt
African swine fever (ASF) is an acute and often fatal disease affecting domestic pigs and wild boar, with severe economic consequences for affected countries. ASF is endemic in sub-Saharan Africa and the island of Sardinia, Italy. Since 2007, the virus emerged in the republic of Georgia, and since then spread throughout the Caucasus region and Russia. Outbreaks have also been reported in Belarus, Ukraine, Lithuania, Latvia, Estonia, Romania, Moldova, Czech Republic, and Poland, threatening neighboring West European countries...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551142/how-does-vaccinia-virus-interfere-with-interferon
#5
Geoffrey L Smith, Callum Talbot-Cooper, Yongxu Lu
Interferons (IFNs) are secreted glycoproteins that are produced by cells in response to virus infection and other stimuli and induce an antiviral state in cells bearing IFN receptors. In this way, IFNs restrict virus replication and spread before an adaptive immune response is developed. Viruses are very sensitive to the effects of IFNs and consequently have evolved many strategies to interfere with interferon. This is particularly well illustrated by poxviruses, which have large dsDNA genomes and encode hundreds of proteins...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551141/intracellular-antiviral-immunity
#6
Maria Bottermann, Leo C James
Innate immunity is traditionally thought of as the first line of defense against pathogens that enter the body. It is typically characterized as a rather weak defense mechanism, designed to restrict pathogen replication until the adaptive immune response generates a tailored response and eliminates the infectious agent. However, intensive research in recent years has resulted in better understanding of innate immunity as well as the discovery of many effector proteins, revealing its numerous powerful mechanisms to defend the host...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551140/changing-role-of-wild-birds-in-the-epidemiology-of-avian-influenza-a-viruses
#7
Rogier Bodewes, Thijs Kuiken
Waterbirds are the main reservoir for low pathogenic avian influenza A viruses (LPAIV), from which occasional spillover to poultry occurs. When circulating among poultry, LPAIV may become highly pathogenic avian influenza A viruses (HPAIV). In recent years, the epidemiology of HPAIV viruses has changed drastically. HPAIV H5N1 are currently endemic among poultry in a number of countries. In addition, global spread of HPAIV H5Nx viruses has resulted in major outbreaks among wild birds and poultry worldwide. Using data collected during these outbreaks, the role of migratory birds as a vector became increasingly clear...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551139/antiviral-immune-response-and-the-route-of-infection-in-drosophila-melanogaster
#8
Juan A Mondotte, Maria-Carla Saleh
The use of Drosophila as a model organism has made an important contribution to our understanding of the function and regulation of innate immunity in insects. Indeed, insects can discriminate between different types of pathogens and mount specific and effective responses. Strikingly, the same pathogen can trigger a different immune response in the same organism, depending solely on the route of infection by which the pathogen is delivered. In this review, we recapitulate what is known about antiviral responses in Drosophila, and how they are triggered depending on the route and the mode used for the virus to infect its host...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551138/an-orchestra-of-reovirus-receptors-still-searching-for-the-conductor
#9
Danica M Sutherland, Pavithra Aravamudhan, Terence S Dermody
Viruses are constantly engaged in a molecular arms race with the host, where efficient and tactical use of cellular receptors benefits critical steps in infection. Receptor use dictates initiation, establishment, and spread of viral infection to new tissues and hosts. Mammalian orthoreoviruses (reoviruses) are pervasive pathogens that use multiple receptors to overcome protective host barriers to disseminate from sites of initial infection and cause disease in young mammals. In particular, reovirus invades the central nervous system (CNS) with serotype-dependent tropism and disease...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551137/the-role-of-immune-responses-in-hiv-mother-to-child-transmission
#10
Caitlin Milligan, Jennifer A Slyker, Julie Overbaugh
HIV mother-to-child transmission (MTCT) represents a success story in the HIV/AIDS field given the significant reduction in number of transmission events with the scale-up of antiretroviral treatment and other prevention methods. Nevertheless, MTCT still occurs and better understanding of the basic biology and immunology of transmission will aid in future prevention and treatment efforts. MTCT is a unique setting given that the transmission pair is known and the infant receives passively transferred HIV-specific antibodies from the mother while in utero...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551136/filoviruses-ecology-molecular-biology-and-evolution
#11
Jackson Emanuel, Andrea Marzi, Heinz Feldmann
The Filoviridae are a family of negative-strand RNA viruses that include several important human pathogens. Ebola virus (EBOV) and Marburg virus are well-known filoviruses which cause life-threatening viral hemorrhagic fever in human and nonhuman primates. In addition to severe pathogenesis, filoviruses also exhibit a propensity for human-to-human transmission by close contact, posing challenges to containment and crisis management. Past outbreaks, in particular the recent West African EBOV epidemic, have been responsible for thousands of deaths and vaulted the filoviruses into public consciousness...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551135/hosts-and-sources-of-endemic-human-coronaviruses
#12
Victor M Corman, Doreen Muth, Daniela Niemeyer, Christian Drosten
The four endemic human coronaviruses HCoV-229E, -NL63, -OC43, and -HKU1 contribute a considerable share of upper and lower respiratory tract infections in adults and children. While their clinical representation resembles that of many other agents of the common cold, their evolutionary histories, and host associations could provide important insights into the natural history of past human pandemics. For two of these viruses, we have strong evidence suggesting an origin in major livestock species while primordial associations for all four viruses may have existed with bats and rodents...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551134/so-what-have-plant-viruses-ever-done-for-virology-and-molecular-biology
#13
George P Lomonossoff
The discovery of a new class of pathogen, viruses, in the late 19th century, ushered in a period of study of the biochemical and structural properties of these entities in which plant viruses played a prominent role. This was, in large part, due to the relative ease with which sufficient quantities of material could be produced for such analyses. As analytical techniques became increasingly sensitive, similar studies could be performed on the viruses from other organisms. However, plant viruses continued to play an important role in the development of molecular biology, including the demonstration that RNA can be infectious, the determination of the genetic code, the mechanism by which viral RNAs are translated, and some of the early studies on gene silencing...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551133/protein-localization-and-interaction-studies-in-plants-toward-defining-complete-proteomes-by-visualization
#14
Michael M Goodin
Protein interaction and localization studies in plants are a fundamental component of achieving mechanistic understanding of virus:plant interactions at the systems level. Many such studies are conducted using transient expression assays in leaves of Nicotiana benthamiana, the most widely used experimental plant host in virology, examined by laser-scanning confocal microscopy. This chapter provides a workflow for protein interaction and localization experiments, with particular attention to the many control and supporting assays that may also need to be performed...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29551132/the-species-problem-in-virology
#15
Marc H V Van Regenmortel
Virus classification deals with conceptual species classes that have viruses as their members. A virus species cannot be described but can only be defined by listing certain species-defining properties of its member. However, it is not possible to define a virus species by using a single species-defining property. The new 2013 official definition of virus species is not appropriate because it applies equally to virus genera. A nucleotide motif is a chemical part of a viral genome and is not a species-defining property that could be used for establishing new virus species...
2018: Advances in Virus Research
https://www.readbyqxmd.com/read/29029730/assessing-the-diversity-of-rodent-borne-viruses-exploring-of-high-throughput-sequencing-and-classical-amplification-sequencing-approaches
#16
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
#17
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
#18
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
#19
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
#20
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
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