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Megalocytiviruses
Viruses 2012, 4(5), 734-760; doi:10.3390/v4050734
Article

Spread of the Emerging Viral Hemorrhagic Septicemia Virus Strain, Genotype IVb, in Michigan, USA

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Received: 21 March 2012; in revised form: 11 April 2012 / Accepted: 13 April 2012 / Published: 3 May 2012
(This article belongs to the Special Issue Viruses Infecting Fish, Amphibians, and Reptiles)
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Abstract: In 2003, viral hemorrhagic septicemia virus (VHSV) emerged in the Laurentian Great Lakes causing serious losses in a number of ecologically and recreationally important fish species. Within six years, despite concerted managerial preventive measures, the virus spread into the five Great Lakes and to a number of inland waterbodies. In response to this emerging threat, cooperative efforts between the Michigan Department of Natural Resources (MI DNR), the Michigan State University Aquatic Animal Health Laboratory (MSU-AAHL), and the United States Department of Agriculture-Animal and Plant Health Inspection Services (USDA-APHIS) were focused on performing a series of general and VHSV-targeted surveillances to determine the extent of virus trafficking in the State of Michigan. Herein we describe six years (2005–2010) of testing, covering hundreds of sites throughout Michigan’s Upper and Lower Peninsulas. A total of 96,228 fish representing 73 species were checked for lesions suggestive of VHSV and their internal organs tested for the presence of VHSV using susceptible cell lines. Of the 1,823 cases tested, 30 cases from 19 fish species tested positive for VHSV by tissue culture and were confirmed by reverse transcriptase polymerase chain reaction (RT-PCR). Gene sequence analyses of all VHSV isolates retrieved in Michigan demonstrated that they belong to the emerging sublineage “b” of the North American VHSV genotype IV. These findings underscore the complexity of VHSV ecology in the Great Lakes basin and the critical need for rigorous legislation and regulatory guidelines in order to reduce the virus spread within and outside of the Laurentian Great Lakes watershed.
Keywords: Michigan; viral hemorrhagic septicemia virus; Laurentian Great Lakes; emerging disease Michigan; viral hemorrhagic septicemia virus; Laurentian Great Lakes; emerging disease
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Faisal, M.; Shavalier, M.; Kim, R.K.; Millard, E.V.; Gunn, M.R.; Winters, A.D.; Schulz, C.A.; Eissa, A.; Thomas, M.V.; Wolgamood, M.; Whelan, G.E.; Winton, J. Spread of the Emerging Viral Hemorrhagic Septicemia Virus Strain, Genotype IVb, in Michigan, USA. Viruses 2012, 4, 734-760.

AMA Style

Faisal M, Shavalier M, Kim RK, Millard EV, Gunn MR, Winters AD, Schulz CA, Eissa A, Thomas MV, Wolgamood M, Whelan GE, Winton J. Spread of the Emerging Viral Hemorrhagic Septicemia Virus Strain, Genotype IVb, in Michigan, USA. Viruses. 2012; 4(5):734-760.

Chicago/Turabian Style

Faisal, Mohamed; Shavalier, Megan; Kim, Robert K.; Millard, Elena V.; Gunn, Michelle R.; Winters, Andrew D.; Schulz, Carolyn A.; Eissa, Alaa; Thomas, Michael V.; Wolgamood, Martha; Whelan, Gary E.; Winton, James. 2012. "Spread of the Emerging Viral Hemorrhagic Septicemia Virus Strain, Genotype IVb, in Michigan, USA." Viruses 4, no. 5: 734-760.


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