Arbovirus Test Results for Virginia, 2007
Arboviruses
WNV West Nile Virus
LAC La Crosse Encephalitis
EEE Eastern Equine Encephalitis
SLE St. Louis Encephalitis virus
Humans - Arbovirus Cases in Virginia for 2007 (updated January 28, 2008)
Location by County/City or Health District Arbovirus Number of Cases Case Status Illness Onset Date of First Case Illness Onset Date of Most Recent Case Deaths
Arlington County WNV 1 Confirmed 24-Aug-07 24-Aug-07 0
Fairfax County WNV 2* Confirmed 26-Jun-07 19-Jul-07 0
Norfolk WNV 1** Confirmed 03-Aug-07 03-Aug-07 0
Richmond WNV 1 Probable 11-Aug-07 11-Aug-07 0
* 1 Case imported from Colorado
** Case imported from South Dakota
Wild Birds - Arbovirus Cases in Virginia for 2007 (updated August 6, 2007)
Wild birds will not be collected or tested for West Nile virus in 2007
Horses - Arbovirus Cases in Virginia (WNV and EEE) for 2007 (updated November 13, 2007)
Location Collected by County or City Arbovirus Number of Horses Positive Recovered/ Recovering, Euthanized, or Died Illness Onset Date of First Horse Illness Onset Date of Last Horse
Rockingham County WNV 1 Recovered 23-Jun-07 23-Jun-07
Suffolk City EEE 2 Both Euthanized 24-Jun-07 04-Aug-07
Surry County EEE 1 Euthanized 01-Sep-07 01-Sep-07
Mosquito Pools - Arbovirus Cases in Virginia (WNV and EEE) for 2007 (updated January 28, 2008)
Location Collected by County or City Arbovirus Positive Pools Mosquito Species Date First Pool Collected Date Last Pool Collected
Chesapeake City EEE 12 Cs. melanura 27-Jun-07 21-Sep-07
Suffolk City EEE 1 Cq. perturbans 19-Jul-07 19-Jul-07
Suffolk City EEE 5 Cs. melanura 19-Jul-07 11-Sep-07
Suffolk City EEE 1 Cx. erraticus 07-Aug-07 07-Aug-07
Virginia Beach City EEE 1 Cs. melanura 06-Aug-07 06-Aug-07
Total EEE Positive Mosquito Pools 20
           
Alexandria City WNV 3 Ae. albopictus 14-Aug-07 11-Oct-07
Alexandria City WNV 29 Cx. pipiens/restuans 25-Jul-07 04-Oct-07
Arlington County WNV 4 Ae. albopictus 05-Sep-07 03-Oct-07
Arlington County WNV 39 Cx. pipiens 18-Jul-07 11-Oct-07
Arlington County WNV 18 Cx. restuans 18-Jul-07 03-Oct-07
Chesapeake City WNV 1 Cs. Melanura 19-Jul-07 19-Jul-07
Fairfax County WNV 10 Ae. albopictus 08-Aug-07 03-Oct-07
Fairfax County WNV 9 Ae. vexans 08-Aug-07 14-Sep-07
Fairfax County WNV 1 An. punctipennis 10-Oct-07 10-Oct-07
Fairfax County WNV 1 Cx. erraticus 22-Aug-07 22-Aug-07
Fairfax County WNV 384 Cx. pipiens 03-Jul-07 25-Oct-07
Fairfax County WNV 59 Cx. restuans 08-May-07 17-Oct-07
Fairfax County WNV 11 Cx. pipiens/restuans 07-Aug-07 22-Oct-07
Henrico County WNV 32 Cx. pipiens/restuans 03-Aug-07 09-Oct-07
Loudoun County WNV 8 Cx. pipiens/restuans 09-Aug-07 29-Sep-07
Prince William County WNV 3 Ae. albopictus 19-Jul-07 15-Aug-07
Prince William County WNV 52 Cx. pipiens/restuans 28-Jun-07 02-Oct-07
Richmond City WNV 3 Ae. albopictus 27-Jul-07 18-Oct-07
Richmond City WNV 113 Cx. pipiens/restuans 13-Jul-07 18-Oct-07
Virginia Beach WNV 1 Cx. pipiens/restuans 04-Sep-07 04-Sep-07
Total WNV Positive Mosquito Pools 781
Sentinel Chicken - Arbovirus Cases in Virginia (WNV and EEE) for 2007 (updated January 28, 2008)
Location Collected by County or City Arbovirus Total Positive Flocks Total Positive Chickens Date First Collected Date Last Collected
Chesapeake City
EEE
7 13 02-Jul-07 29-Oct-07
Suffolk City EEE 3 4 25-Jun-07 23-Jul-07
Virginia Beach EEE 1 1 13-Aug-07 04-Sep-07
Virginia Beach WNV 1 2 20-Aug-07 20-Aug-07
Other Mammals - West Nile Virus Cases in Virginia for 2007 (updated August 6, 2007)
Location Collected by County or City Species Affected Recovered/ Recovering, Euthanized or Died Onset Date of First Case Onset Date of Last Case
None reported        
Arbovirus acquired out of country
County Arbovirus Country disease imported from: Date Country was visited Onset date of disease
Fairfax County Dengue Bolivia 12/15/06 to 1/15/07 1/18/2007
Charlottesville Dengue Saint Barthelemy 3/7/07 to 3/17/07 3/23/2007
Hanover County Dengue Costa Rica 5/8/07 to 5/29/07 5/27/2007
Arlington County Dengue India 5/24/07 to 6/12/07 6/10/2007
Richmond Dengue Costa Rica 5/1/07 to 6/20/07 6/27/2007
Loudoun County Chikungunya India 7/3/07 to 7/16/07 7/16/2007
Fairfax County Dengue El Salvador Unknown to 7/29/07 7/31/2007
Fairfax County Dengue El Salvador Unknown to 7/29/07 7/31/2007
Arlington County Dengue Honduras 7/16/07 to 8/11/07 8/6/2007
Chesterfield County Dengue Mexico 7/10/07 to 8/22/07 8/10/2007
Fairfax County Dengue Bangladesh 7/21/07 to 8/17/07 8/14/2007
Fairfax County Dengue Bangladesh 7/21/07 to 8/17/07 8/15/2007
Fairfax County Dengue El Salvador 8/20/07 to 8/28/07 8/30/2007
Fredericksburg Dengue Puerto Rico 8/12/07 to 8/18/07 9/11/2007
Fairfax County Dengue Puerto Rico Unknown to 9/18/07 9/18/2007
Fairfax County Dengue India Unknown 9/25/2007
Loudoun County Dengue Tanzania 2005 to 9/24/07 9/27/2007
Charlottesville Dengue India 9/10/07 to 9/24/07 9/30/2007
Virginia Beach Dengue India 9/19/07 to 10/1/07 9/30/2007
Loudoun County Dengue Saint Thomas 9/25/07 to 9/30/07 10/2/2007
Orange County Dengue Puerto Rico 10/11/07 to 11/17/07 10/20/2007
Prince William County Dengue Dominican Republic 6/07 to 11/4/07 11/9/2007
Fauquier County Dengue Saint Martin 11/30/07 to 12/4/07 12/5/2007