The First Isolation and Whole Genome Sequencing of Murray Valley Encephalitis Virus from Cerebrospinal Fluid of a Patient with Encephalitis.

Author(s)
Russell JS
Caly L
Kostecki R
McGuinness SL
Carter G
Bulach D
Seemann T
Stinear TP
Baird, Robert
Catton M
Druce J
Publication Date
2018-06-11
Abstract
Murray Valley Encephalitis virus (MVEV) is a mosquito-borne Flavivirus. Clinical presentation is rare but severe, with a case fatality rate of 15⁻30%. Here we report a case of MVEV from the cerebrospinal fluid (CSF) of a patient in the Northern Territory in Australia. Initial diagnosis was performed using both MVEV-specific real-time, and Pan-Flavivirus conventional, Polymerase Chain Reaction (PCR), with confirmation by Sanger sequencing. Subsequent isolation, the first from CSF, was conducted in Vero cells and the observed cytopathic effect was confirmed by increasing viral titre in the real-time PCR. Isolation allowed for full genome sequencing using the Scriptseq V2 RNASeq library preparation kit. A consensus genome for VIDRL-MVE was generated and phylogenetic analysis identified it as Genotype 2. This is the first reported isolation, and full genome sequencing of MVEV from CSF. It is also the first time Genotype 2 has been identified in humans. As such, this case has significant implications for public health surveillance, epidemiology, and the understanding of MVEV evolution.
Affiliation
Victorian Infectious Diseases Reference Laboratory at the Peter Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. jessica.russell@mh.org.au..
Victorian Infectious Diseases Reference Laboratory at the Peter Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. leon.caly@mh.org.au..
Victorian Infectious Diseases Reference Laboratory at the Peter Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. renata.kostecki@mh.org.au..
Department of Infectious Diseases, Royal Darwin Hospital, 105 Rocklands Drive, Tiwi, Darwin, NT 0810, Australia. sarah.mcguinness@monash.edu..
Doherty Applied Microbial Genomics, Department of Microbiology and Immunology, University of Melbourne, Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. glen.carter@unimelb.edu.au.. The Microbiological Diagnostic Unit Public Health Laboratory, Department of Microbiology and Immunology, University of Melbourne, Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. glen.carter@unimelb.edu.au..
Doherty Applied Microbial Genomics, Department of Microbiology and Immunology, University of Melbourne, Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. dbulach@gmail.com.. The Microbiological Diagnostic Unit Public Health Laboratory, Department of Microbiology and Immunology, University of Melbourne, Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. dbulach@gmail.com..
Doherty Applied Microbial Genomics, Department of Microbiology and Immunology, University of Melbourne, Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. t.seemann@unimelb.edu.au.. The Microbiological Diagnostic Unit Public Health Laboratory, Department of Microbiology and Immunology, University of Melbourne, Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. t.seemann@unimelb.edu.au..
Doherty Applied Microbial Genomics, Department of Microbiology and Immunology, University of Melbourne, Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. tstinear@unimelb.edu.au..
Territory Pathology, Royal Darwin Hospital, 105 Rocklands Drive, Tiwi, Darwin, NT 0810, Australia. Rob.Baird@nt.gov.au..
Victorian Infectious Diseases Reference Laboratory at the Peter Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. mike.catton@mh.org.au..
Victorian Infectious Diseases Reference Laboratory at the Peter Doherty Institute for Infection and Immunity, 792 Elizabeth Street, Melbourne, VIC 3000, Australia. julian.druce@mh.org.au..
Citation
Viruses . 2018 Jun 11;10(6):319. doi: 10.3390/v10060319.
OrcId
0000-0002-5725-0102
0000-0001-6046-610X
0000-0003-0150-123X
Pubmed ID
https://pubmed.ncbi.nlm.nih.gov/29891797/?otool=iaurydwlib
Link
Subject
Flavivirus
Murray Valley encephalitis
cerebrospinal fluid
isolation
whole genome sequencing
Title
The First Isolation and Whole Genome Sequencing of Murray Valley Encephalitis Virus from Cerebrospinal Fluid of a Patient with Encephalitis.
Type of document
Journal Article
Entity Type
Publication

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