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https://www.readbyqxmd.com/read/28289976/genetic-characterization-of-a-novel-calicivirus-from-a-goose
#1
Fumin Wang, Minghang Wang, Yunhan Dong, Bing Zhang, Dabing Zhang
A novel calicivirus (strain H146) was detected in a goose and sequenced. The H146 genome consisted of two open reading frames (ORFs) with an 8-nucleotide (nt) overlap between the two ORFs, similar to what has been found in the bat sapovirus TLC58. The virus was most closely related to nacoviruses when comparing the complete genome sequence (49% identity), non-structural region (NS; 31-34% amino acid [aa] sequence identity), and major structural VP1 region (28-30% aa identity), whereas both goose calicivirus N and feline calicivirus were the closest relatives of H146 in the VP2 region (20% aa sequence identity)...
March 13, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28288206/an-in-vivo-system-for-directed-experimental-evolution-of-rabbit-haemorrhagic-disease-virus
#2
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/28284625/putative-vaccine-breakthrough-event-associated-with-heterotypic-rotavirus-infection-in-newborn-calves-turkey-2015
#3
Ilke Karayel, Enikő Fehér, Szilvia Marton, Nüvit Coskun, Krisztián Bányai, Feray Alkan
Group A rotaviruses (RVA) are regarded as major enteric pathogens of large ruminants, including cattle. Rotavirus vaccines administered to pregnant cows are commonly used to provide passive immunity that protects newborn calves from the clinical disease. In this study we report the detection of RVA from calves with severe diarrhea in a herd regularly vaccinated to prevent enteric infections including RVA. Diarrheic disease was observed in newborn calves aged 4-15days, with high morbidity and mortality rates, but no diarrhea was seen in adult animals...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28284600/seroprevalence-for-2117-like-vesiviruses-in-italian-household-dogs
#4
Barbara Di Martino, Federica Di Profio, Livia Bodnar, Irene Melegari, Vittorio Sarchese, Ivano Massirio, Giulia Dowgier, Gianvito Lanave, Fulvio Marsilio, Krisztián Bányai, Canio Buonavoglia, Vito Martella
In 2003, a novel calicivirus, the vesivirus (VeV) strain 2117, was identified incidentally as a contaminant in Chinese Hamster Ovary (CHO) cell cultures by a German pharmaceutical company. Similar contaminations have been documented in three additional episodes, in bio-reactors used for production of recombinant drugs. More, recently 2117-like VeVs have also been identified at high prevalence in the stools from asymptomatic kennel dogs and only sporadically in diarrhoeic and healthy household dogs. In this study, antibodies for 2117-like viruses were detected in 21...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28261185/metagenomic-sequencing-for-surveillance-of-food-and-waterborne-viral-diseases
#5
David F Nieuwenhuijse, Marion P G Koopmans
A plethora of viruses can be transmitted by the food- and waterborne route. However, their recognition is challenging because of the variety of viruses, heterogeneity of symptoms, the lack of awareness of clinicians, and limited surveillance efforts. Classical food- and waterborne viral disease outbreaks are mainly caused by caliciviruses, but the source of the virus is often not known and the foodborne mode of transmission is difficult to discriminate from human-to-human transmission. Atypical food- and waterborne viral disease can be caused by viruses such as hepatitis A and hepatitis E...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28259077/assessment-of-the-efficacy-of-membrane-filtration-processes-to-remove-human-enteric-viruses-and-the-suitability-of-bacteriophages-and-a-plant-virus-as-surrogates-for-those-viruses
#6
N Shirasaki, T Matsushita, Y Matsui, K Murai
Here, we evaluated the efficacy of direct microfiltration (MF) and ultrafiltration (UF) to remove three representative human enteric viruses (i.e., adenovirus [AdV] type 40, coxsackievirus [CV] B5, and hepatitis A virus [HAV] IB), and one surrogate of human caliciviruses (i.e., murine norovirus [MNV] type 1). Eight different MF membranes and three different UF membranes were used. We also examined the ability of coagulation pretreatment with high-basicity polyaluminum chloride (PACl) to enhance virus removal by MF...
February 24, 2017: Water Research
https://www.readbyqxmd.com/read/28235708/prevalence-of-feline-calicivirus-in-cats-with-odontoclastic-resorptive-lesions-and-chronic-gingivostomatitis
#7
Sheeba Thomas, David F Lappin, Julie Spears, David Bennett, Christopher Nile, Marcello P Riggio
Feline odontoclastic resorptive lesion (FORL) and feline chronic gingivostomatitis (FCGS) are two of the most common diseases of the feline oral cavity. While evidence is emerging that FCGS is caused by gingival inflammation initiated and perpetuated by the oral microbiota, little is known in this regard for FORL. Feline calicivirus (FCV) has been associated with the presence of FCGS and is thought to play a role in the initiation of this disease. In this study, the incidence of FCV was investigated in cats with FORL and FCGS, and compared to unaffected controls...
February 9, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28231031/different-serological-profiles-to-cooccurring-pathogenic-and-nonpathogenic-caliciviruses-in-wild-european-rabbits-oryctolagus-cuniculus-across-australia
#8
Tanya E Cox, June Liu, Remy van de Ven, Tanja Strive
Rabbit hemorrhagic disease virus (RHDV) was released in Australia as a biocontrol agent for wild European rabbits ( Oryctolagus cuniculus ) in 1995-96; however, its effects were variable across Australia with the greatest population reductions seen in lower annual rainfall areas (<400 mm). There is speculation that the reduced effectiveness observed at higher annual rainfall sites is at least partially due to the presence of a nonpathogenic calicivirus (RCV-A1). The RCV-A1 is related to RHDV and confers partial and transient protection against lethal RHDV infection in laboratory tests...
February 23, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28196955/identification-of-human-junctional-adhesion-molecule-1-as-a-functional-receptor-for-the-hom-1-calicivirus-on-human-cells
#9
Stanislav V Sosnovtsev, Carlos Sandoval-Jaime, Gabriel I Parra, Christine M Tin, Ronald W Jones, Jo Soden, Donna Barnes, Jim Freeth, Alvin W Smith, Kim Y Green
The Hom-1 vesivirus was reported in 1998 following the inadvertent transmission of the animal calicivirus San Miguel sea lion virus to a human host in a laboratory. We characterized the Hom-1 strain and investigated the mechanism by which human cells could be infected. An expression library of 3,559 human plasma membrane proteins was screened for reactivity with Hom-1 virus-like particles, and a single interacting protein, human junctional adhesion molecule 1 (hJAM1), was identified. Transient expression of hJAM1 conferred susceptibility to Hom-1 infection on nonpermissive Chinese hamster ovary (CHO) cells...
February 14, 2017: MBio
https://www.readbyqxmd.com/read/28190489/genetic-and-phylogenetic-analysis-of-feline-calicivirus-isolates-in-china
#10
Yaxin Sun, Mingliang Deng, Zhong Peng, Ruiming Hu, Huanchun Chen, Bin Wu
The aim of this study was to determine the genetic diversity of Chinese feline calicivirus (FCV) isolates and their phylogenetic relationship with isolates from elsewhere in the world. Phylogenetic analysis was performed based on the partial open reading frame (ORF) 2 sequences (regions B-F) of 21 Chinese FCV isolates and 30 global isolates. The Chinese isolates included 13 isolates from Wuhan, which were isolated in this study, and eight previously published isolates. Sixteen Chinese isolates and two Japanese isolates formed a distinct phylogenetic cluster...
February 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28149490/occurrence-of-chlamydophila-felis-feline-herpesvirus-1-and-calcivirus-in-domestic-cats-of-iran
#11
Nadi Maazi, Shahram Jamshidi, Payman Kayhani, Hassan Momtaz
BACKGROUND AND OBJECTIVES: Feline herpesvirus-1, feline calicivirus and Chlamydophila felis are the main causes of feline upper respiratory tract disease. This study was conducted to identify of FeHV-1, FCV and C. felis infections in domestic cat population and also to estimate the prevalence of each specific infection in Iran. MATERIALS AND METHODS: The ocular conjunctiva and oropharyngeal specimens obtained from 80 cats were examined using PCR and reverse transcription PCR...
October 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28072826/rna-dependent-rna-polymerases-of-both-virulent-and-benign-rabbit-caliciviruses-induce-striking-rearrangement-of-golgi-membranes
#12
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/28045956/recombinase-polymerase-amplification-assay-a-simple-fast-and-cost-effective-alternative-to-real-time-pcr-for-specific-detection-of-feline-herpesvirus-1
#13
Jianchang Wang, Libing Liu, Jinfeng Wang, Xiaoxia Sun, Wanzhe Yuan
Feline herpesvirus 1 (FHV-1), an enveloped dsDNA virus, is one of the major pathogens of feline upper respiratory tract disease (URTD) and ocular disease. Currently, polymerase chain reaction (PCR) remains the gold standard diagnostic tool for FHV-1 infection but is relatively expensive, requires well-equipped laboratories and is not suitable for field tests. Recombinase polymerase amplification (RPA), an isothermal gene amplification technology, has been explored for the molecular diagnosis of infectious diseases...
2017: PloS One
https://www.readbyqxmd.com/read/28040848/new-proof-of-concept-in-viral-inactivation-virucidal-efficacy-of-405%C3%A2-nm-light-against-feline-calicivirus-as-a-model-for-norovirus-decontamination
#14
Rachael M Tomb, Michelle Maclean, John E Coia, Elizabeth Graham, Michael McDonald, Chintamani D Atreya, Scott J MacGregor, John G Anderson
The requirement for novel decontamination technologies for use in hospitals is ever present. One such system uses 405 nm visible light to inactivate microorganisms via ROS-generated oxidative damage. Although effective for bacterial and fungal inactivation, little is known about the virucidal effects of 405 nm light. Norovirus (NoV) gastroenteritis outbreaks often occur in the clinical setting, and this study was designed to investigate potential inactivation effects of 405 nm light on the NoV surrogate, feline calicivirus (FCV)...
December 31, 2016: Food and Environmental Virology
https://www.readbyqxmd.com/read/28040178/blueberry-proanthocyanidins-against-human-norovirus-surrogates-in-model-foods-and-under-simulated-gastric-conditions
#15
Snehal Joshi, Amy B Howell, Doris H D'Souza
Blueberry proanthocyanidins (B-PAC) are known to decrease titers of human norovirus surrogates in vitro. The application of B-PAC as therapeutic or preventive options against foodborne viral illness needs to be determined using model foods and simulated gastric conditions in vitro. The objective of this study was to evaluate the antiviral effect of B-PAC in model foods (apple juice (AJ) and 2% reduced fat milk) and simulated gastrointestinal fluids against cultivable human norovirus surrogates (feline calicivirus; FCV-F9 and murine norovirus; MNV-1) over 24 h at 37 °C...
May 2017: Food Microbiology
https://www.readbyqxmd.com/read/27909112/norovirus-and-other-human-calicivirus-infections
#16
EDITORIAL
Jacob J Rosenberg
No abstract text is available yet for this article.
December 2016: Pediatrics in Review
https://www.readbyqxmd.com/read/27902397/vesivirus-2117-capsids-more-closely-resemble-sapovirus-and-lagovirus-particles-than-other-known-vesivirus-structures
#17
Michaela Conley, Edward Emmott, Richard Orton, David Taylor, Daniel Carneiro, Kazuyoshi Murata, Ian Goodfellow, Grant Hansman, David Bhella
Vesivirus 2117 is an adventitious agent that in 2009, was identified as a contaminant of CHO 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 disease 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...
November 14, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27902382/genetic-diversity-and-phenotypic-associations-of-feline-caliciviruses-from-cats-in-switzerland
#18
Andrea M Spiri, Julien Thézé, Marina L Meli, Valentino Cattori, Alice Berger, Adolf Steinrigl, Oliver G Pybus, Regina Hofmann-Lehmann, Barbara Willi
Feline calicivirus (FCV) is a common viral pathogen in domestic cats worldwide. The variable regions of the capsid (VP1) gene of FCV have one of the highest recorded rates of molecular evolution. Understanding the genetic diversity and phylogeny of FCV is a prerequisite to exploring the epidemiology and pathogenesis of this virus and to the development of efficacious vaccine strategies. In this study, we undertook a nationwide molecular characterization of FCV using for the first time nearly complete capsid (VP1) gene sequences...
December 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27886032/prevalence-and-factors-associated-with-different-pathogens-of-acute-diarrhea-in-adults-in-beijing-china
#19
Lei Jia, Changying Lin, Zhiyong Gao, Mei Qu, Junyong Yang, Jingyi Sun, He Chen, Quanyi Wang
INTRODUCTION: Only a small proportion of patients with diarrhea are diagnosed with laboratory tests in China, and most are diagnosed based on clinical symptoms. Therefore, understanding the prevalence of different diarrheal pathogens and their specific symptoms is important. METHODOLOGY: Data from a prospective study in Beijing of acute diarrhea and the related pathogens were used to study the association between different pathogen groups and the infected patients' characteristics...
November 24, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/27881647/activation-of-cox-2-pge2-promotes-sapovirus-replication-via-the-inhibition-of-nitric-oxide-production
#20
Mia Madel Alfajaro, Jong-Soon Choi, Deok-Song Kim, Ja-Young Seo, Ji-Yun Kim, Jun-Gyu Park, Mahmoud Soliman, Yeong-Bin Baek, Eun-Hyo Cho, Joseph Kwon, Hyung-Jun Kwon, Su-Jin Park, Woo Song Lee, Mun-Il Kang, Myra Hosmillo, Ian Goodfellow, Kyoung-Oh Cho
Enteric caliciviruses in the genera Norovirus and Sapovirus are important pathogens that cause severe acute gastroenteritis in both humans and animals. Cyclooxygenases (COXs) and their final product, prostaglandin E2 (PGE2), are known to play important roles in the modulation of both the host response to infection and the replicative cycles of several viruses. However, the precise mechanism(s) by which the COX/PGE2 pathway regulates sapovirus replication remains largely unknown. In this study, infection with porcine sapovirus (PSaV) strain Cowden, the only cultivable virus within the genus Sapovirus, markedly increased COX-2 mRNA and protein levels at 24 and 36 h postinfection (hpi), with only a transient increase in COX-1 levels seen at 24 hpi...
February 1, 2017: Journal of Virology
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