#Detection of #WNV and #Usutu Viruses in #Italian Free Areas: #Entomological #Surveillance in #Piemonte and #Liguria Regions, 2014 (Vector Borne Zoo Dis., abstract)

[Source: Vector Borne and Zoonotic Diseases, full page: (LINK). Abstract, edited.]

Vector-Borne and Zoonotic Diseases

Detection of West Nile and Usutu Viruses in Italian Free Areas: Entomological Surveillance in Piemonte and Liguria Regions, 2014  [      ]

To cite this article: Pautasso Alessandra, Radaelli Maria Cristina, Ballardini Marco, Francese Danila Raffaella, Verna Federica, Modesto Paola, Grattarola Carla, Desiato Rosanna, Bertolini Silvia, Vitale Nicoletta, Ferrari Angelo, Rossini Irene, Accorsi Annalisa, Mosca Andrea, Monaco Federica, Savini Giovanni, Prearo Marino, Mignone Walter, Chiavacci Laura, and Casalone Cristina. Vector-Borne and Zoonotic Diseases. February 2016, ahead of print. doi:10.1089/vbz.2015.1851.

Online Ahead of Print: February 10, 2016

 

ABSTRACT

West Nile virus and Usutu virus have established in different parts of Italy over the past 10 years. Piemonte and Liguria Regions (Northwestern Italy) are known to be nonendemic areas, despite the presence of competent vectors and environmental conditions conducive to maintaining infection. This work evidences for the first time, through an entomological surveillance implemented on the basis of risk factor approach, the presence of West Nile and Usutu viruses in Piemonte and Liguria Regions (Northwestern Italy).

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Keywords: Research; Abstracts; West Nile Virus; Usutu Virus.

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Concurrent #Outbreaks of St. Louis #Encephalitis Virus and #WestNile #Virus #Disease — #Arizona, 2015 (MMWR Morb Mortal Wkly Rep., abstract)

[Source: US Centers for Disease Control and Prevention (CDC), MMWR Morbidity and Mortality Weekly Report, full page: (LINK). Abstract, edited.]

Notes from the Field: Concurrent Outbreaks of St. Louis Encephalitis Virus and West Nile Virus Disease — Arizona, 2015 [      ]

Weekly / December 11, 2015 / 64(48);1349-50

Heather Venkat, DVM1,2,3,*; Elisabeth Krow-Lucal, PhD1,4,*; Morgan Hennessey, DVM1,4; Jefferson Jones, MD1,2,3; Laura Adams, DVM3,6; Marc Fischer, MD4; Tammy Sylvester, MSN2; Craig Levy, MS2; Kirk Smith, PhD5; Lydia Plante, MSPH3; Kenneth Komatsu, MPH3; J. Erin Staples, MD4; Susan Hills, MBBS4

 

Abstract

St. Louis encephalitis virus (SLEV) and West Nile virus (WNV) are closely related mosquito-borne flaviviruses that can cause outbreaks of acute febrile illness and neurologic disease. Both viruses are endemic throughout much of the United States and have the same Culex species mosquito vectors and avian hosts (1); however, since WNV was first identified in the United States in 1999, SLEV disease incidence has been substantially lower than WNV disease incidence, and no outbreaks involving the two viruses circulating in the same location at the same time have been identified. Currently, there is a commercially available laboratory test for diagnosis of acute WNV infection, but there is no commercially available SLEV test, and all SLEV testing must be performed at public health laboratories. In addition, because antibodies against SLEV and WNV can cross-react on standard diagnostic tests, confirmatory neutralizing antibody testing at public health laboratories is usually required to determine the flavivirus species (2). This report describes the first known concurrent outbreaks of SLEV and WNV disease in the United States.

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1Epidemic Intelligence Service, CDC; 2Maricopa County Department of Public Health, Phoenix, Arizona; 3Arizona Department of Health Services; 4Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, CDC; 5Maricopa County Environmental Services Vector Control Division; 6Career Epidemiology Field Officer Program, CDC.

Corresponding authors: Heather Venkat, HeatherVenkat@mail.maricopa.gov, 602-531-4422; Elisabeth Krow-Lucal, ekrowlucal@cdc.gov, 970-266-3565.

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Keywords: USA; US CDC; Updates; West Nile Fever; St Louis Encephalitis; Arizona.

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#Serological #Survey of #WestNile #Virus in #Pet #Dogs from #Saskatchewan, #Canada (Vector-Borne Zoo Dis., abstract)

[Source: Vector-Borne and Zoonotic Diseases, full page: (LINK). Abstract, edited.]

Vector-Borne and Zoonotic Diseases

Serological Survey of West Nile Virus in Pet Dogs from Saskatchewan, Canada  [      ]

To cite this article: Gaunt M. Casey, Waldner Cheryl, and Taylor Susan M.. Vector-Borne and Zoonotic Diseases. -Not available-, ahead of print. doi:10.1089/vbz.2015.1780.

Online Ahead of Print: December 8, 2015

 

ABSTRACT

Serum samples collected from 143 dogs from Saskatchewan, Canada, between 2008 and 2010 were evaluated for seroprevalence of West Nile virus (WNV). WNV antibodies were identified in 40/143 dogs (28%). Dogs that were primarily housed in the yard were 6.2 times (95% confidence interval [CI] 2.6–14.5) more likely to have antibodies than dogs housed in the house or garage. Dogs were more likely to be positive with increasing time spent outside. The results of this study document WNV seroprevalence in dogs from Saskatchewan and suggest that pet dogs might be useful as a sentinel species for WNV surveillance.

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Keywords: Research; Abstracts; West Nile Virus; Canada; Dogs.

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