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Rabbit haemorrhagic disease

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https://www.readbyqxmd.com/read/28714849/proposal-for-a-unified-classification-system-and-nomenclature-of-lagoviruses
#1
Jacques Le Pendu, Joana Abrantes, Stéphane Bertagnoli, Jean-Sébastien Guitton, Ghislaine Le Gall-Reculé, Ana Margarida Lopes, Stéphane Marchandeau, Fernando Alda, Tereza Almeida, Alves Paulo Célio, Juan Bárcena, Galina Burmakina, Esther Blanco, Carlos Calvete, Patrizia Cavadini, Brian Cooke, Kevin Dalton, Miguel Delibes Mateos, Wieslaw Deptula, John Sebastian Eden, Fang Wang, Catarina C Ferreira, Paula Ferreira, Pilar Foronda, David Gonçalves, Dolores Gavier-Widén, Robin Hall, Beata Hukowska-Szematowicz, Peter Kerr, John Kovaliski, Antonio Lavazza, Jackie Mahar, Alexander Malogolovkin, Raquel M Marques, Sara Marques, Aaron Martin-Alonso, Pedro Monterroso, Sacramento Moreno, Greg Mutze, Aleksija Neimanis, Paulina Niedzwiedzka-Rystwej, David Peacock, Francisco Parra, Mara Rocchi, Carlos Rouco, Nathalie Ruvoën-Clouet, Eliane Silva, Diogo Silvério, Tanja Strive, Gertrudes Thompson, Beata Tokarz-Deptula, Pedro Esteves
Lagoviruses belong to the Caliciviridae family. They were first recognized as highly pathogenic viruses of the European rabbit (Oryctolagus cuniculus) and European brown hare (Lepus europaeus) that emerged in the 1970-1980s, namely, rabbit haemorrhagic disease virus (RHDV) and European brown hare syndrome virus (EBHSV), according to the host species from which they had been first detected. However, the diversity of lagoviruses has recently expanded to include new related viruses with varying pathogenicity, geographic distribution and host ranges...
July 17, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28702932/phylogenetic-analysis-of-rabbit-haemorrhagic-disease-virus-rhdv-strains-isolated-in-poland
#2
Andrzej Fitzner, Wieslaw Niedbalski
The aim of this study was to characterise the nucleotide and amino acid sequence of complete genomes (7.5 kb) from RHDV strains isolated in Poland and estimate the genetic variability in different elements of the viral RNA. In addition, the sequence of Polish RHDV isolates isolated from 1988-2015 was compared with the sequences of other European RHDV, including the RHDVa and RHDV2/RHDVb subtypes. The complete sequence was developed by the compilation of partial nucleotide sequences. This sequence consisted of approximately 7428 nucleotides...
July 12, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28689774/expression-of-il-1ra-il-6-il-8-il-18-tnf-%C3%AE-and-ifn-%C3%AE-genes-in-peripheral-blood-leukocytes-of-rabbits-infected-with-rhdv-rabbit-haemorrhagic-disease-virus
#3
Alicja Trzeciak-Ryczek, Beata Tokarz-Deptuła, Wiesław Deptuła
Rabbit haemorrhagic disease virus (RHDV) induces a highly contagious and extremely lethal disease that fulfils many requirements of an animal model of fulminant hepatic failure (FHF); however, the pathogenesis of RHD has still not been fully elucidated. Cytokines play an important role in regulation of the immune response and pathogenesis of many diseases, including those caused by viral infections. Furthermore, recent studies indicate a role of the immune response, especially peripheral blood leukocytes (PBL), in the pathogenesis of RHD...
July 8, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28667769/resistance-to-rhd-virus-in-wild-australian-rabbits-comparison-of-susceptible-and-resistant-individuals-using-a-genome-wide-approach
#4
Nina I Schwensow, Harald Detering, Stephen Pederson, Camila Mazzoni, Ron Sinclair, David Peacock, John Kovaliski, Brian Cooke, Jörns Fickel, Simone Sommer
Deciphering the genes involved in disease resistance is essential if we are to understand host-pathogen co-evolutionary processes. The Rabbit Haemorrhagic Disease Virus (RHDV) was imported into Australia in 1995 as a biocontrol agent to manage one of the most successful and devastating invasive species, the European rabbit (Oryctolagus cuniculus). During the first outbreaks of the disease, RHDV caused mortality rates of up to 97%. Recently, however, increased genetic resistance to RHDV has been reported. Here, we have aimed to identify genomic differences between rabbits that survived a natural infection with RHDV and those that died in the field by using a genome-wide Next Generation Sequencing (NGS) approach...
July 1, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28653381/efficacy-of-a-commercial-vaccine-against-different-strains-of-rabbit-haemorrhagic-disease-virus
#5
A J Read, P D Kirkland
BACKGROUND: This study investigated the ability of a commercial rabbit haemorrhagic disease virus (RHDV) vaccine (Cylap®) to protect rabbits from disease caused by two different strains of the virus (v351 and K5) that are used or proposed to be used for wild rabbit control in Australia. These strains of the RHDV1 genotype belong to the 'classical RHDV' and 'antigenic variant RHDVa' subtypes, respectively. METHODS: Vaccinated rabbits were exposed to very high doses of the virus either by direct oral dosing or by exposure to infected rabbit livers...
July 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28639220/emergence-of-rabbit-haemorrhagic-disease-virus-2-in-the-archipelago-of-madeira-portugal-2016-2017
#6
Carina Luísa Carvalho, Sara Silva, Paz Gouveia, Margarida Costa, Elsa Leclerc Duarte, Ana Margarida Henriques, Sílvia Santos Barros, Tiago Luís, Fernanda Ramos, Teresa Fagulha, Miguel Fevereiro, Margarida Dias Duarte
We report the detection of rabbit haemorrhagic disease virus 2 (RHDV2) in the Madeira archipelago, Portugal. Viral circulation was confirmed by RT-qPCR and vp60 sequencing. Epidemiological data revealed the outbreak initiated in October 2016 in Porto Santo affecting wild and domestic rabbits. It was then detected three months later on the island of Madeira. Five haplotypes were identified and a genetic overall similarity of 99.54 to 99.89% was observed between the two viral populations. Unique single nucleotide polymorphisms were recognised in the Madeira archipelago strains, two of which resulting in amino acid substitutions at positions 480 and 570 in the VP60 protein...
June 21, 2017: Virus Genes
https://www.readbyqxmd.com/read/28426381/hyperbaric-oxygen-for-experimental-intracerebral-haemorrhage-systematic-review-and-stratified-meta-analysis
#7
Han-Jin Cui, Hao-Yu He, A-Li Yang, Hua-Jun Zhou, Tao Tang, Jie-Kun Luo
OBJECTIVE: Hyperbaric oxygen (HBO) is widely used in treating various neurological diseases. However, HBO for treatment of intracerebral haemorrhage (ICH) remains controversial, in either animal or clinical studies. Therefore, we conducted this systematic review and meta-analysis on studies describing the efficacy of HBO in animal models of ICH. METHODS: Studies were identified by searching mainstream databases through November 2015. The efficacy of HBO in animal models of ICH was assessed by changes in the brain water content (BWC), neurobehavioural outcome (NO) or both...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28407381/arrival-of-rabbit-haemorrhagic-disease-virus-2-to-northern-europe-emergence-and-outbreaks-in-wild-and-domestic-rabbits-oryctolagus-cuniculus-in-sweden
#8
A S Neimanis, H Ahola, S Zohari, U Larsson Pettersson, C Bröjer, L Capucci, D Gavier-Widén
Incursion of rabbit haemorrhagic disease virus (RHDV) into Sweden was documented in 1990 and it is now considered endemic in wild rabbit (Oryctolagus cuniculus) populations. Rabbit haemorrhagic disease virus 2 (RHDV2), a new, related lagovirus was first detected in France in 2010, and has spread rapidly throughout Europe and beyond. However, knowledge of RHDV2 in northern Europe is sporadic and incomplete, and in Sweden, routinely available diagnostic methods to detect rabbit haemorrhagic disease (RHD) do not distinguish between types of virus causing disease...
April 13, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28363968/benign-rabbit-calicivirus-in-new-zealand
#9
Leila J Nicholson, Jackie E Mahar, Tanja Strive, Tao Zheng, Edward C Holmes, Vernon K Ward, Janine A Duckworth
The Czech v351 strain of rabbit hemorrhagic disease virus (RHDV1) is used in Australia and New Zealand as a biological control agent for rabbits, which are important and damaging introduced vertebrate pests in these countries. However, nonpathogenic rabbit caliciviruses (RCVs) can provide partial immunological cross-protection against lethal RHDV infection and thus interfere with effective rabbit biocontrol. Antibodies that cross-reacted against RHDV antigens were found in wild rabbits before the release of RHDV1 in New Zealand in 1997, suggesting that nonpathogenic RCVs were already present in New Zealand...
June 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28341721/increased-pathogenicity-in-rabbit-haemorrhagic-disease-virus-type-2-rhdv2
#10
L Capucci, P Cavadini, M Schiavitto, G Lombardi, A Lavazza
No abstract text is available yet for this article.
March 24, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28288206/an-in-vivo-system-for-directed-experimental-evolution-of-rabbit-haemorrhagic-disease-virus
#11
Robyn N Hall, Lorenzo Capucci, Markus Matthaei, Simona Esposito, Peter J Kerr, Michael Frese, Tanja Strive
The calicivirus Rabbit haemorrhagic disease virus (RHDV) is widely used in Australia as a biocontrol agent to manage wild European rabbit (Oryctolagus cuniculus) populations. However, widespread herd immunity limits the effectiveness of the currently used strain, CAPM V-351. To overcome this, we developed an experimental platform for the selection and characterisation of novel RHDV strains. As RHDV does not replicate in cell culture, variant viruses were selected by serially passaging a highly virulent RHDV field isolate in immunologically naïve laboratory rabbits that were passively immunised 18-24 hours post-challenge with a neutralising monoclonal antibody...
2017: PloS One
https://www.readbyqxmd.com/read/28253375/genomic-and-phenotypic-characterization-of-myxoma-virus-from-great-britain-reveals-multiple-evolutionary-pathways-distinct-from-those-in-australia
#12
Peter J Kerr, Isabella M Cattadori, Matthew B Rogers, Adam Fitch, Adam Geber, June Liu, Derek G Sim, Brian Boag, John-Sebastian Eden, Elodie Ghedin, Andrew F Read, Edward C Holmes
The co-evolution of myxoma virus (MYXV) and the European rabbit occurred independently in Australia and Europe from different progenitor viruses. Although this is the canonical study of the evolution of virulence, whether the genomic and phenotypic outcomes of MYXV evolution in Europe mirror those observed in Australia is unknown. We addressed this question using viruses isolated in the United Kingdom early in the MYXV epizootic (1954-1955) and between 2008-2013. The later UK viruses fell into three distinct lineages indicative of a long period of separation and independent evolution...
March 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28092608/white-and-red-blood-cell-picture-in-rabbits-experimentally-infected-with-strains-of-the-rabbit-haemorrhagic-disease-rhd-virus-without-or-with-variable-haemagglutination-capacity
#13
P Niedźwiedzka-Rystwej, B Tokarz-Deptuła, W Deptuła
The aim of the study was to establish if haemagglutination of rabbit haemorrhagic disease virus (RHDV) affects haematological picture of peripheral blood in rabbits and the pathogenicity of the virus. The study analyzed white and red blood cell picture in rabbits experimentally infected with two non-haemagglutinating (HA-) RHDV strains (Frankfurt and Asturias) and one strain with variable haemagglutination capacity (HA+/-) (Hagenow). Studies with HA- and HA +/- are rare and relate only to 4 HA- strains (2 RHDV: BLA and Rainham; 2 RHDVa: Pv97 and 9905) and 1 HA+/- RHDV strain: ŻD, where less changes in haematological indices and less pathogenicity were observed...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28088341/evaluation-of-an-in-house-indirect-elisa-for-detection-of-antibody-against-haemorrhagic-septicemia-in-asian-elephants
#14
Pallop Tankaew, Thawatchai Singh-La, Chatchote Titaram, Veerasak Punyapornwittaya, Preeyanat Vongchan, Takuo Sawada, Nattawooti Sthitmatee
Pasteurella multocida causes haemorrhagic septicemia in livestock and wild animals, including elephants. The disease has been reported in Asian elephants in India and Sri Lanka, but to date there have been no reported cases in Thailand. ELISA or indirect hemagglutination assays (IHA) have been demonstrated to be able to detect the antibody against the disease in cattle, but no data are available for elephants. The present study reports a novel in-house indirect ELISA for antibody detection of haemorrhagic septicemia in Asian elephants, and evaluates the sensitivity and specificity of the method using a Bayesian approach...
March 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28072826/rna-dependent-rna-polymerases-of-both-virulent-and-benign-rabbit-caliciviruses-induce-striking-rearrangement-of-golgi-membranes
#15
Nadya Urakova, Tanja Strive, Michael Frese
The extremely pathogenic Rabbit haemorrhagic disease virus (RHDV) and the completely benign Rabbit calicivirus (RCV) are closely related members of the genus Lagovirus (family Caliciviridae). The molecular mechanisms that determine the dramatic difference in virulence are unknown, but indirect evidence suggests that different properties of their RNA-dependent RNA polymerases (RdRps) may at least partially be responsible for the contrasting phenotypes. Here we report that the unusual ability of the RHDV RdRp to induce a striking rearrangement of the Golgi network is not specific to RHDV, but a common feature of virulent and benign rabbit caliciviruses alike...
2017: PloS One
https://www.readbyqxmd.com/read/28062006/challenges-in-the-rabbit-haemorrhagic-disease-2-rhdv2-molecular-diagnosis-of-vaccinated-rabbits
#16
C L Carvalho, E L Duarte, M Monteiro, A Botelho, T Albuquerque, M Fevereiro, A M Henriques, S S Barros, Margarida Dias Duarte
Molecular methods are fundamental tools for the diagnosis of viral infections. While interpretation of results is straightforward for unvaccinated animals, where positivity represents ongoing or past infections, the presence of vaccine virus in the tissues of recently vaccinated animals may mislead diagnosis. In this study, we investigated the interference of RHDV2 vaccination in the results of a RT-qPCR for RHDV2 detection, and possible associations between mean Cq values of five animal groups differing in age, vaccination status and origin (domestic/wild)...
January 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28034455/proliferative-enteropathy-caused-by-lawsonia-intracellularis-in-chickens
#17
T Ohta, K Kimura, K Katsuda, H Kobayashi, O Mikami, M Haritani, T Onodera
Proliferative enteropathy (PE) is an infectious disease caused by Lawsonia intracellularis (Li), an obligate intracellular bacterium. PE is endemic in swine herds and has been reported in a variety of mammals including horses, hamsters, rabbits, rats, guinea pigs, ferrets, foxes, dogs, sheep, deer and non-human primates. Avian cases are reported only in ratite birds, including emus and ostriches. Some studies show an absence of Lawsonia spp. infection in chickens. In this study, we performed morphological and bacteriological examinations on the intestines of two broiler chickens that had been condemned at a poultry slaughter plant in Japan due to intestinal haemorrhage, which was a result of focal coccidial enteritis...
December 26, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27902397/vesivirus-2117-capsids-more-closely-resemble-sapovirus-and-lagovirus-particles-than-other-known-vesivirus-structures
#18
COMPARATIVE STUDY
Michaela Conley, Edward Emmott, Richard Orton, David Taylor, Daniel G Carneiro, Kazuyoshi Murata, Ian G Goodfellow, Grant S Hansman, David Bhella
Vesivirus 2117 is an adventitious agent that, in 2009, was identified as a contaminant of Chinese hamster ovary cells propagated in bioreactors at a pharmaceutical manufacturing plant belonging to Genzyme. The consequent interruption in supply of Fabrazyme and Cerezyme (drugs used to treat Fabry and Gaucher diseases, respectively) caused significant economic losses. Vesivirus 2117 is a member of the Caliciviridae, a family of small icosahedral viruses encoding a positive-sense RNA genome. We have used cryo-electron microscopy and three-dimensional image reconstruction to calculate a structure of vesivirus 2117 virus-like particles as well as feline calicivirus and a chimeric sapovirus...
January 2017: Journal of General Virology
https://www.readbyqxmd.com/read/27871816/experimental-transmission-of-rabbit-haemorrhagic-disease-virus-rhdv-from-rabbit-to-wild-mice-mus-spretus-and-apodemus-sylvaticus-under-laboratory-conditions
#19
Gregorio Rocha, Fernando Alda, Albert Pagés, Tomás Merchán
Rabbit haemorrhagic disease (RHD) is a highly lethal and contagious viral disease that produces haemorrhagic lesions in liver and lungs of domestic and wild rabbits (Oryctolagus cuniculus). This study investigates the transmission of RHDV from infected rabbits to mice, based on the detection of viral RNA. Sixteen wild mice (Mus spretus, n=12 and Apodemus sylvaticus, n=4) were put in contact with nine rabbits inoculated with RHDV. No mice died following exposure to RHDV-infected rabbits or developed macroscopic haemorrhagic lesions...
January 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27796353/disease-mediated-bottom-up-regulation-an-emergent-virus-affects-a-keystone-prey-and-alters-the-dynamics-of-trophic-webs
#20
Pedro Monterroso, Germán Garrote, Ana Serronha, Emídio Santos, Miguel Delibes-Mateos, Joana Abrantes, Ramón Perez de Ayala, Fernando Silvestre, João Carvalho, Inês Vasco, Ana M Lopes, Elisa Maio, Maria J Magalhães, L Scott Mills, Pedro J Esteves, Miguel Ángel Simón, Paulo C Alves
Emergent diseases may alter the structure and functioning of ecosystems by creating new biotic interactions and modifying existing ones, producing cascading processes along trophic webs. Recently, a new variant of the rabbit haemorrhagic disease virus (RHDV2 or RHDVb) arguably caused widespread declines in a keystone prey in Mediterranean ecosystems - the European rabbit (Oryctolagus cuniculus). We quantitatively assess the impact of RHDV2 on natural rabbit populations and in two endangered apex predator populations: the Iberian lynx (Lynx pardinus) and the Spanish Imperial eagle (Aquila adalberti)...
October 31, 2016: Scientific Reports
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