Study of Chikungunya Virus Entry and Host Response to Infection Marie Cresson
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Evolutionary Relationships and Systematics of the Alphaviruses ANN M
JOURNAL OF VIROLOGY, Nov. 2001, p. 10118–10131 Vol. 75, No. 21 0022-538X/01/$04.00ϩ0 DOI: 10.1128/JVI.75.21.10118–10131.2001 Copyright © 2001, American Society for Microbiology. All Rights Reserved. Evolutionary Relationships and Systematics of the Alphaviruses ANN M. POWERS,1,2† AARON C. BRAULT,1† YUKIO SHIRAKO,3‡ ELLEN G. STRAUSS,3 1 3 1 WENLI KANG, JAMES H. STRAUSS, AND SCOTT C. WEAVER * Department of Pathology and Center for Tropical Diseases, University of Texas Medical Branch, Galveston, Texas 77555-06091; Division of Vector-Borne Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado2; and Division of Biology, California Institute of Technology, Pasadena, California 911253 Received 1 May 2001/Accepted 8 August 2001 Partial E1 envelope glycoprotein gene sequences and complete structural polyprotein sequences were used to compare divergence and construct phylogenetic trees for the genus Alphavirus. Tree topologies indicated that the mosquito-borne alphaviruses could have arisen in either the Old or the New World, with at least two transoceanic introductions to account for their current distribution. The time frame for alphavirus diversifi- cation could not be estimated because maximum-likelihood analyses indicated that the nucleotide substitution rate varies considerably across sites within the genome. While most trees showed evolutionary relationships consistent with current antigenic complexes and species, several changes to the current classification are proposed. The recently identified fish alphaviruses salmon pancreas disease virus and sleeping disease virus appear to be variants or subtypes of a new alphavirus species. Southern elephant seal virus is also a new alphavirus distantly related to all of the others analyzed. -
Temperature-Sensitive Mutants of Sindbis Virus: Complementation Group F Mutants Have Lesions in Nsp4 YOUNG S
JOURNAL OF VIROLOGY, Mar. 1989, p. 1194-1202 Vol. 63, No. 3 0022-538X/89/031194-09$02.00/0 Copyright © 1989, American Society for Microbiology Mapping of RNA- Temperature-Sensitive Mutants of Sindbis Virus: Complementation Group F Mutants Have Lesions in nsP4 YOUNG S. HAHN,' ARASH GRAKOUI,2 CHARLES M. RICE,2 ELLEN G. STRAUSS,' AND JAMES H. STRAUSS'* Division ofBiology, California Institute of Technology, Pasadena, California 91125,1 and Department of Microbiology and Immunology, Washington University, St. Louis, Missouri 631102 Received 24 October 1988/Accepted 28 November 1988 Temperature-sensitive (ts) mutants of Sindbis virus belonging to complementation group F, ts6, tsllO, and ts118, are defective in RNA synthesis at the nonpermissive temperature. cDNA clones of these group F mutants, as well as of ts+ revertants, have been constructed. To assign the ts phenotype to a specific region in the viral genome, restriction fragments from the mutant cDNA clones were used to replace the corresponding regions of the full-length clone Totol101 of Sindbis virus. These hybrid plasmids were transcribed in vitro by SP6 RNA polymerase to produce infectious transcripts, and the virus recovered was tested for temperature sensitivity. After the ts lesion of each mutant was mapped to a specific region of 400 to 800 nucleotides by this approach, this region of the cDNA clones of both the ts mutant and ts+ revertants was sequenced in order to determine the precise nucleotide change and amino acid substitution responsible for each mutation. Rescued mutants, which have a uniform background except for one or two defined changes, were examined for viral RNA synthesis and complementation to show that the phenotypes observed were the result of the mutations mapped. -
Molecular Epidemiology and Characterisation of Wesselsbron Virus and Co-Circulating Alphaviruses in Sentinel Animals in South Africa
Molecular Epidemiology and Characterisation of Wesselsbron Virus and Co-circulating Alphaviruses in Sentinel Animals in South Africa 3 4 Human S.1, Gerdes T , Stroebel J. C. , and Venter M1, 2* 1 Department of Medical Virology, Faculty of Health Sciences, University of Pretoria, South Africa; 2 National Health Laboratory Services, Tshwane Academic Division; 3 Onderstepoort Veterinary Institute, South Africa; 4 Western Cape Provincial Veterinary Laboratory * Contact person: Dr M Venter. Senior lecturer, Department of Medical Virology, Faculty of Health Sciences, University of Pretoria/NHLS Tshwane Academic Division, P.O Box 2034, Pretoria, 0001, South Africa. Tel: +27 12 319 2660, Fax: +27 12 319 5550, e-mail: [email protected], [email protected] ABSTRACT Flavi and alphaviruses are a significant cause of morbidity and mortality in both humans and animals worldwide. In order to determine the contribution of flavi and alphaviruses to unexplained neurological hepatic or fever cases in horses and other animals in South Africa, cases resembling these symptoms were screened for Flaviviruses (other than West Nile virus) and Alphaviruses. The results show that both Wesselsbron and alphaviruses (Sindbis-like and Middelburg virus) can contribute to neurological disease and fevers in horses. KEYWORDS Wesselsbron virus disease, Sindbis-like virus, Middelburg virus INTRODUCTION In South Africa (SA) the most important mosquito borne viruses are West Nile Virus (WNV) and Wesselsbron virus (Flaviviridae) and the Sindbis and Middelburg viruses (Togaviridae). These viruses are transmitted by Culex spp. (WNV and Sindbis virus) and Aedes spp. (Wesselsbron and Middelburg virus) mosquitoes. Wesselsbron (WSLB) virus was first discovered in 1955 in the Wesselsbron district of the Free State province in SA where it was isolated from an eight-day-old lamb (Weiss et al., 1956). -
A 2015 Outbreak of Getah Virus Infection Occurring Among Japanese Racehorses Sequentially to an Outbreak in 2014 at the Same
Bannai et al. BMC Veterinary Research (2016) 12:98 DOI 10.1186/s12917-016-0741-5 RESEARCH ARTICLE Open Access A 2015 outbreak of Getah virus infection occurring among Japanese racehorses sequentially to an outbreak in 2014 at the same site Hiroshi Bannai* , Akihiro Ochi, Manabu Nemoto, Koji Tsujimura, Takashi Yamanaka and Takashi Kondo Abstract Background: As we reported previously, Getah virus infection occurred in horses at the Miho training center of the Japan Racing Association in 2014. This was the first outbreak after a 31-year absence in Japan. Here, we report a recurrent outbreak of Getah virus infection in 2015, sequential to the 2014 one at the same site, and we summarize its epizootiological aspects to estimate the risk of further outbreaks in upcoming years. Results: The outbreak occurred from mid-August to late October 2015, affecting 30 racehorses with a prevalence of 1.5 % of the whole population (1992 horses). Twenty-seven (90.0 %) of the 30 affected horses were 2-year-olds, and the prevalence in 2-year-olds (27/613 [4.4 %]) was significantly higher than that in horses aged 3 years or older (3/1379 [0.2 %], P < 0.01). Therefore, the horses newly introduced from other areas at this age were susceptible, whereas most horses aged 3 years or older, which had experienced the previous outbreak in 2014, were resistant. Among the 2-year-olds, the prevalence in horses that had been vaccinated once (10/45 [22.2 %]) was significantly higher than that in horses vaccinated twice or more (17/568 [3.0 %], P < 0.01). -
Investigating the Role of Host TTR-Rbps During SFV4 and MHV-68 Infection
Investigating the role of host TTR-RBPs during SFV4 and MHV-68 infection Thesis submitted in accordance with the requirements of the University of Liverpool for the degree of Doctor in Philosophy by Jamie Casswell October 2019 Contents Figure Contents Page……………………………………………………………………………………7 Table Contents Page…………………………………………………………………………………….9 Acknowledgements……………………………………………………………………………………10 Abbreviations…………………………………………………………………………………………….11 Abstract……………………………………………………………………………………………………..17 1. Chapter 1 Introduction……………………………………………………………………………19 1.1 DNA and RNA viruses ............................................................................. 20 1.2 Taxonomy of eukaryotic viruses ............................................................. 21 1.3 Arboviruses ............................................................................................ 22 1.4 Togaviridae ............................................................................................ 22 1.4.1 Alphaviruses ............................................................................................................................. 23 1.4.1.1 Semliki Forest Virus ........................................................................................................... 25 1.4.1.2 Alphavirus virion structure and structural proteins ......................................................... 26 1.4.1.3 Alphavirus non-structural proteins ................................................................................... 29 1.4.1.4 Alphavirus genome organisation -
X-Ray Structure of the Arenavirus Glycoprotein GP2 in Its Postfusion Hairpin Conformation
Corrections NEUROBIOLOGY Correction for “High-resolution structure of hair-cell tip links,” The authors note that Figure 3 appeared incorrectly. The by Bechara Kachar, Marianne Parakkal, Mauricio Kurc, Yi-dong corrected figure and its legend appear below. This error does not Zhao, and Peter G. Gillespie, which appeared in issue 24, affect the conclusions of the article. November 21, 2000, of Proc Natl Acad Sci USA (97:13336– 13341; 10.1073/pnas.97.24.13336). CORRECTIONS Fig. 3. Upper and lower attachments of the tip link. (A and B) Freeze-etch images of tip-link upper insertions in guinea pig cochlea (A) and (left to right) two from guinea pig cochlea, two from bullfrog sacculus, and two from guinea pig utriculus (B). Each example shows pronounced branching. (C and D) Freeze- etch images of the tip-link lower insertion in stereocilia from bullfrog sacculus (C) and guinea pig utriculus (D); multiple strands (arrows) arise from the stereociliary tip. (E) Freeze-fracture image of stereociliary tips from bullfrog sacculus; indentations at tips are indicated by arrows. (Scale bars: A = 100 nm, B = 25 nm; C–E = 100 nm.) www.pnas.org/cgi/doi/10.1073/pnas.1311228110 www.pnas.org PNAS | July 16, 2013 | vol. 110 | no. 29 | 12155–12156 Downloaded by guest on September 28, 2021 BIOCHEMISTRY BIOPHYSICS AND COMPUTATIONAL BIOLOGY, STATISTICS Correction for “X-ray structure of the arenavirus glycoprotein Correction for “Differential principal component analysis of GP2 in its postfusion hairpin conformation,” by Sébastien Igo- ChIP-seq,” by Hongkai Ji, Xia Li, Qian-fei Wang, and Yang net, Marie-Christine Vaney, Clemens Vonhrein, Gérard Bri- Ning, which appeared in issue 17, April 23, 2013, of Proc Natl cogne, Enrico A. -
The Challenges Posed by Equine Arboviruses
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Repository@Nottingham 1 The challenges posed by equine arboviruses 2 Authors: 3 Gail Elaine Chapman1, Matthew Baylis1, Debra Archer1, Janet Mary Daly2 4 1Epidemiology and Population Health, Institute of Infection and Global Health, University of 5 Liverpool, Liverpool, UK. 6 2School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK 7 Corresponding author: Janet Daly; [email protected] 8 Keywords: 9 Arbovirus, horse, encephalitis, vector, diagnosis 10 Word count: c.5000 words excluding references 11 Declarations 12 Ethical Animal Research 13 N/A 14 Competing Interests 15 None. 16 Source of Funding 17 G.E. Chapman’s PhD research scholarship is funded by The Horse Trust. 18 Acknowledgements 19 N/A 20 Authorship 21 GAC and JMD drafted sections of the manuscript; MB and DA reviewed and contributed to the 22 manuscript 23 1 24 Summary 25 Equine populations worldwide are at increasing risk of infection by viruses transmitted by biting 26 arthropods including mosquitoes, biting midges (Culicoides), sandflies and ticks. These include the 27 flaviviruses (Japanese encephalitis, West Nile and Murray Valley encephalitis), alphaviruses (eastern, 28 western and Venezuelan encephalitis) and the orbiviruses (African horse sickness and equine 29 encephalosis). This review provides an overview of the challenges faced in the surveillance, prevention 30 and control of the major equine arboviruses, particularly in the context of these viruses emerging in 31 new regions of the world. 32 Introduction 33 The rate of emergence of infectious diseases, in particular vector-borne viral diseases such as dengue, 34 chikungunya, Zika, Rift Valley fever, West Nile, Schmallenberg and bluetongue, is increasing globally 35 in human and animal species for a variety of reasons [1]. -
MARBURG HEMORRHAGIC FEVER (Marburg HF)
MARBURG HEMORRHAGIC FEVER (Marburg HF) REPORTING INFORMATION • Class A: Report immediately via telephone the case or suspected case and/or a positive laboratory result to the local public health department where the patient resides. If patient residence is unknown, report immediately via telephone to the local public health department in which the reporting health care provider or laboratory is located. Local health departments should report immediately via telephone the case or suspected case and/or a positive laboratory result to the Ohio Department of Health (ODH). • Reporting Form(s) and/or Mechanism: o Immediately via telephone. o For local health departments, cases should also be entered into the Ohio Disease Reporting System (ODRS) within 24 hours of the initial telephone report to the ODH. • Key fields for ODRS reporting include: import status (whether the infection was travel-associated or Ohio-acquired), date of illness onset, and all the fields in the Epidemiology module. AGENT Marburg hemorrhagic fever is a rare, severe type of hemorrhagic fever which affects both humans and non-human primates. Caused by a genetically unique zoonotic RNA virus of the family Filoviridae, its recognition led to the creation of this virus family. The five species of Ebola virus are the only other known members of the family Filoviridae. Marburg virus was first recognized in 1967, when outbreaks of hemorrhagic fever occurred simultaneously in laboratories in Marburg and Frankfurt, Germany and in Belgrade, Yugoslavia (now Serbia). A total of 31 people became ill, including laboratory workers as well as several medical personnel and family members who had cared for them. -
Ross River Virus 159
EVE Man 08-046 Mair v2:Layout 1 14/08/2009 13:10 Page 159 Ross River virus 159 ROSS RIVER VIRUS T. S. Mair* and P. J. Timoney† Bell Equine Veterinary Clinic, Mereworth, Maidstone, Kent ME18 5GS; and †Gluck Equine Research Center, University of Kentucky, Lexington, Kentucky 40546-0099, USA. Keywords: horse; Ross River virus; Alphavirus; mosquito-borne; horse; zoonosis Summary locomotor difficulties can persist for several months Ross River virus is an arthropod-borne virus even years in a percentage of affected individuals (arbovirus) and the cause of the most common (Boughton 1996). Whereas infection with Ross River mosquito-borne human disease in Australia, being virus is commonly encountered in horses in many frequently associated with a debilitating polyarthritis. areas of Australia, especially in the northern tropical Serological evidence would indicate that subclinical regions where there is year-round virus activity infections with the virus are widespread in horses in (Russell 2002), the overall clinical attack rate would many areas of the country. Clinical disease can occur appear to be low (Azuolas 1998). in horses, with affected animals displaying any or all of the following signs: pyrexia, inappetence, lameness, Aetiology stiffness, swollen joints, reluctance to move, ataxia, Ross River virus is a single-stranded, positive sense mild colic and poor performance. Persistence of certain RNA virus with quasi-species structure belonging to clinical signs such as limb soreness and impaired the genus Alphavirus, family Togaviridae. It is performance for months or even years has also been classified in the Semliki Forest complex along with reported in a small percentage of cases. -
Feline Foamy Virus-Based Vectors: Advantages of an Authentic Animal Model
Viruses 2013, 5, 1702-1718; doi:10.3390/v5071702 OPEN ACCESS viruses ISSN 1999-4915 www.mdpi.com/journal/viruses Review Feline Foamy Virus-Based Vectors: Advantages of an Authentic Animal Model †,‡ † Weibin Liu , Janet Lei , Yang Liu, Dragana Slavkovic Lukic, Ann-Mareen Räthe, # Qiuying Bao, Timo Kehl, Anne Bleiholder, Torsten Hechler and Martin Löchelt * Department of Genome Modifications, Research Program Infection and Cancer, German Cancer Research Center, Im Neuenheimer Feld 242, 69120 Heidelberg, Germany; E-Mails: [email protected] (W.L.); [email protected] (J.L.); [email protected] (Y.L.); [email protected] (D.S.L.); [email protected] (A.-M.R.); [email protected] (Q.B.); [email protected] (T.K.); [email protected] (T.H.) † These authors contributed equally to this work. ‡ Current address: Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA. # Current address: Department of Biochemistry, Heidelberg Pharma GmbH, Schriesheimer Str. 101, 68526 Ladenburg, Germany. * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +49-6221-424933; Fax: +49-6221-424932. Received: 1 March 2013; in revised form: 13 June 2013 / Accepted: 25 June 2013 / Published: 12 July 2013 Abstract: New-generation retroviral vectors have potential applications in vaccination and gene therapy. Foamy viruses are particularly interesting as vectors, because they are not associated to any disease. Vector research is mainly based on primate foamy viruses (PFV), but cats are an alternative animal model, due to their smaller size and the existence of a cognate feline foamy virus (FFV). -
Construção E Aplicação De Hmms De Perfil Para a Detecção E Classificação De Vírus
UNIVERSIDADE DE SÃO PAULO PROGRAMA INTERUNIDADES DE PÓS-GRADUAÇÃO EM BIOINFORMÁTICA Construção e Aplicação de HMMs de Perfil para a Detecção e Classificação de Vírus Miriã Nunes Guimarães SÃO PAULO 2019 Construção e Aplicação de HMMs de Perfil para a Detecção e Classificação de Vírus Miriã Nunes Guimarães Dissertação apresentada à Universidade de São Paulo, como parte das exigências do Programa de Pós-Graduação Interunidades em Bioinformática, para obtenção do título de Mestre em Ciências. Área de Concentração: Bioinformática Orientador: Prof. Dr. Arthur Gruber SÃO PAULO 2019 “Na vida, não existe nada a temer, mas a entender.” Marie Curie Agradecimentos Ao Professor Arthur Gruber pela oportunidade desde o início como estagiária no laboratório, pela orientação neste período de aprendizado no mestrado e por fornecer um ambiente de trabalho favorável. À aluna de doutorado Liliane Santana Oliveira que aguentou todas as minhas amolações diárias no laboratório pelo Hangouts, por dúvidas que eram erros meus em comandos de execução, pela paciência, pela amizade, pela companhia nos bandejões da faculdade com cardápio glutenfree que nem sempre eram tão bons assim. À aluna de mestrado Irina Yuri Kawashima que estava comigo no laboratório diariamente, pelas várias discussões sobre o mundo dos vírus e de conhecimentos da bioinformática, pelas ferramentas para facilitar o andamento do projeto, por todas guloseimas glutenfree que seria impossível eu não agradecer pois tenho ciência que não vou encontrar outra amiga masterchef assim. À Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) pelo financiamento durante estes 24 meses de mestrado. Aos meus pais pelo carinho e preocupação comigo durante estes 24 anos, pelo incentivo aos estudos e pelo apoio para eu me manter a uma distância de quase 400km de pura saudade. -
1 Lujo Viral Hemorrhagic Fever: Considering Diagnostic Capacity And
1 Lujo Viral Hemorrhagic Fever: Considering Diagnostic Capacity and 2 Preparedness in the Wake of Recent Ebola and Zika Virus Outbreaks 3 4 Dr Edgar Simulundu1,, Prof Aaron S Mweene1, Dr Katendi Changula1, Dr Mwaka 5 Monze2, Dr Elizabeth Chizema3, Dr Peter Mwaba3, Prof Ayato Takada1,4,5, Prof 6 Guiseppe Ippolito6, Dr Francis Kasolo7, Prof Alimuddin Zumla8,9, Dr Matthew Bates 7 8,9,10* 8 9 1 Department of Disease Control, School of Veterinary Medicine, University of Zambia, 10 Lusaka, Zambia 11 2 University Teaching Hospital & National Virology Reference Laboratory, Lusaka, Zambia 12 3 Ministry of Health, Republic of Zambia 13 4 Division of Global Epidemiology, Hokkaido University Research Center for Zoonosis 14 Control, Sapporo, Japan 15 5 Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, 16 Japan 17 6 Lazzaro Spallanzani National Institute for Infectious Diseases, IRCCS, Rome, Italy 18 7 World Health Organization, WHO Africa, Brazzaville, Republic of Congo 19 8 Department of Infection, Division of Infection and Immunity, University College London, 20 U.K 21 9 University of Zambia – University College London Research & Training Programme 22 (www.unza-uclms.org), University Teaching Hospital, Lusaka, Zambia 23 10 HerpeZ (www.herpez.org), University Teaching Hospital, Lusaka, Zambia 24 25 *Corresponding author: Dr. Matthew Bates 26 Address: UNZA-UCLMS Research & Training Programme, University Teaching Hospital, 27 Lusaka, Zambia, RW1X 1 28 Email: [email protected]; Phone: +260974044708 29 30 2 31 Abstract 32 Lujo virus is a novel old world arenavirus identified in Southern Africa in 2008 as the 33 cause of a viral hemorrhagic fever (VHF) characterized by nosocomial transmission 34 with a high case fatality rate of 80% (4/5 cases).