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