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  • 1
    Publication Date: 2015-06-25
    Description: An epidemic of Ebola virus disease of unprecedented scale has been ongoing for more than a year in West Africa. As of 29 April 2015, there have been 26,277 reported total cases (of which 14,895 have been laboratory confirmed) resulting in 10,899 deaths. The source of the outbreak was traced to the prefecture of Gueckedou in the forested region of southeastern Guinea. The virus later spread to the capital, Conakry, and to the neighbouring countries of Sierra Leone, Liberia, Nigeria, Senegal and Mali. In March 2014, when the first cases were detected in Conakry, the Institut Pasteur of Dakar, Senegal, deployed a mobile laboratory in Donka hospital to provide diagnostic services to the greater Conakry urban area and other regions of Guinea. Through this process we sampled 85 Ebola viruses (EBOV) from patients infected from July to November 2014, and report their full genome sequences here. Phylogenetic analysis reveals the sustained transmission of three distinct viral lineages co-circulating in Guinea, including the urban setting of Conakry and its surroundings. One lineage is unique to Guinea and closely related to the earliest sampled viruses of the epidemic. A second lineage contains viruses probably reintroduced from neighbouring Sierra Leone on multiple occasions, while a third lineage later spread from Guinea to Mali. Each lineage is defined by multiple mutations, including non-synonymous changes in the virion protein 35 (VP35), glycoprotein (GP) and RNA-dependent RNA polymerase (L) proteins. The viral GP is characterized by a glycosylation site modification and mutations in the mucin-like domain that could modify the outer shape of the virion. These data illustrate the ongoing ability of EBOV to develop lineage-specific and potentially phenotypically important variation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simon-Loriere, Etienne -- Faye, Ousmane -- Faye, Oumar -- Koivogui, Lamine -- Magassouba, Nfaly -- Keita, Sakoba -- Thiberge, Jean-Michel -- Diancourt, Laure -- Bouchier, Christiane -- Vandenbogaert, Matthias -- Caro, Valerie -- Fall, Gamou -- Buchmann, Jan P -- Matranga, Christan B -- Sabeti, Pardis C -- Manuguerra, Jean-Claude -- Holmes, Edward C -- Sall, Amadou A -- England -- Nature. 2015 Aug 6;524(7563):102-4. doi: 10.1038/nature14612. Epub 2015 Jun 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Institut Pasteur, Functional Genetics of Infectious Diseases Unit, 75724 Paris Cedex 15, France [2] CNRS URA3012, Paris 75015, France. ; Institut Pasteur de Dakar, Arbovirus and Viral Hemorrhagic Fever Unit, BP 220, Dakar, Senegal. ; Institut National de Sante Publique de Guinee, Conakry, Guinea. ; Projet de fievres hemorragiques de Guinee, Universite Gamal Abdel Nasser, BP 1147, Conakry, Guinea. ; Ministry of Health, BP 585 Conakry, Guinea. ; Institut Pasteur, Unite Environnement et Risques Infectieux, Cellule d'Intervention Biologique d'Urgence, 75724 Paris Cedex 15, France. ; Institut Pasteur, Genomic platform, 75724 Paris Cedex 15, France. ; Marie Bashir Institute for Infectious Diseases and Biosecurity, Charles Perkins Centre, School of Biological Sciences and Sydney Medical School, The University of Sydney, Sydney, New South Wales 2006, Australia. ; Broad Institute, 75 Ames Street, Cambridge, Massachusetts 02142, USA. ; 1] Broad Institute, 75 Ames Street, Cambridge, Massachusetts 02142, USA [2] FAS Center for Systems Biology, Department of Organismic and Evolutionary Biology, Harvard University, 52 Oxford Street, Cambridge, Massachusetts 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26106863" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2014-09-13
    Description: In its largest outbreak, Ebola virus disease is spreading through Guinea, Liberia, Sierra Leone, and Nigeria. We sequenced 99 Ebola virus genomes from 78 patients in Sierra Leone to ~2000x coverage. We observed a rapid accumulation of interhost and intrahost genetic variation, allowing us to characterize patterns of viral transmission over the initial weeks of the epidemic. This West African variant likely diverged from central African lineages around 2004, crossed from Guinea to Sierra Leone in May 2014, and has exhibited sustained human-to-human transmission subsequently, with no evidence of additional zoonotic sources. Because many of the mutations alter protein sequences and other biologically meaningful targets, they should be monitored for impact on diagnostics, vaccines, and therapies critical to outbreak response.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4431643/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4431643/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gire, Stephen K -- Goba, Augustine -- Andersen, Kristian G -- Sealfon, Rachel S G -- Park, Daniel J -- Kanneh, Lansana -- Jalloh, Simbirie -- Momoh, Mambu -- Fullah, Mohamed -- Dudas, Gytis -- Wohl, Shirlee -- Moses, Lina M -- Yozwiak, Nathan L -- Winnicki, Sarah -- Matranga, Christian B -- Malboeuf, Christine M -- Qu, James -- Gladden, Adrianne D -- Schaffner, Stephen F -- Yang, Xiao -- Jiang, Pan-Pan -- Nekoui, Mahan -- Colubri, Andres -- Coomber, Moinya Ruth -- Fonnie, Mbalu -- Moigboi, Alex -- Gbakie, Michael -- Kamara, Fatima K -- Tucker, Veronica -- Konuwa, Edwin -- Saffa, Sidiki -- Sellu, Josephine -- Jalloh, Abdul Azziz -- Kovoma, Alice -- Koninga, James -- Mustapha, Ibrahim -- Kargbo, Kandeh -- Foday, Momoh -- Yillah, Mohamed -- Kanneh, Franklyn -- Robert, Willie -- Massally, James L B -- Chapman, Sinead B -- Bochicchio, James -- Murphy, Cheryl -- Nusbaum, Chad -- Young, Sarah -- Birren, Bruce W -- Grant, Donald S -- Scheiffelin, John S -- Lander, Eric S -- Happi, Christian -- Gevao, Sahr M -- Gnirke, Andreas -- Rambaut, Andrew -- Garry, Robert F -- Khan, S Humarr -- Sabeti, Pardis C -- 095831/Wellcome Trust/United Kingdom -- 1DP2OD006514-01/OD/NIH HHS/ -- 1U01HG007480-01/HG/NHGRI NIH HHS/ -- 260864/European Research Council/International -- DP2 OD006514/OD/NIH HHS/ -- GM080177/GM/NIGMS NIH HHS/ -- HHSN272200900049C/AI/NIAID NIH HHS/ -- HHSN272200900049C/PHS HHS/ -- T32 GM080177/GM/NIGMS NIH HHS/ -- U01 HG007480/HG/NHGRI NIH HHS/ -- U19 AI110818/AI/NIAID NIH HHS/ -- U19 AI115589/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2014 Sep 12;345(6202):1369-72. doi: 10.1126/science.1259657. Epub 2014 Aug 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Systems Biology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. ; Kenema Government Hospital, Kenema, Sierra Leone. andersen@broadinstitute.org augstgoba@yahoo.com psabeti@oeb.harvard.edu. ; Center for Systems Biology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. andersen@broadinstitute.org augstgoba@yahoo.com psabeti@oeb.harvard.edu. ; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. ; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. ; Kenema Government Hospital, Kenema, Sierra Leone. ; Kenema Government Hospital, Kenema, Sierra Leone. Eastern Polytechnic College, Kenema, Sierra Leone. ; Institute of Evolutionary Biology, University of Edinburgh, Edinburgh EH9 3JT, UK. ; Center for Systems Biology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. Systems Biology, Harvard Medical School, Boston, MA 02115, USA. ; Tulane University Medical Center, New Orleans, LA 70112, USA. ; Center for Systems Biology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. ; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. Systems Biology, Harvard Medical School, Boston, MA 02115, USA. Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. ; Redeemer's University, Ogun State, Nigeria. ; University of Sierra Leone, Freetown, Sierra Leone. ; Institute of Evolutionary Biology, University of Edinburgh, Edinburgh EH9 3JT, UK. Fogarty International Center, National Institutes of Health, Bethesda, MD 20892, USA. Centre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh EH9 3JT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25214632" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Disease Outbreaks ; Ebolavirus/*genetics/isolation & purification ; *Epidemiological Monitoring ; Genetic Variation ; Genome, Viral/genetics ; Genomics/methods ; Hemorrhagic Fever, Ebola/epidemiology/*transmission/*virology ; Humans ; Mutation ; Sequence Analysis, DNA ; Sierra Leone/epidemiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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