PA West Nile Virus Control Program

Surveillance Data and Maps

Select a county below to view surveillance information for that county.

Map of Surveillance Results

Tabular view of PA county surveillance status for 2001

Pennsylvania Surveillance

Surveillance Type	Number Collected	Number Tested	Number Positives
Humans	N/A	N/A	3
Human Blood Donors	N/A	N/A	-
Dead Birds	1115	990	361
Mosquito Samples	34424	5951	43
Sentinel Samples	7784	7721	0
Veterinary Samples	N/A	N/A	7

Sentinel testing may produce multiple positive results for an individual animal.

County Positives Summary

County	Total Positives	Human Cases	Avian Samples			Mosquito Samples			Sentinel Positives	Veterinary Positives
County	Total Positives	Human Cases	Collected	Tested	Positive	Collected	Tested	Positive	Sentinel Positives	Veterinary Positives
Adams	0	0	6	5	0	634	48	0	0	0
Allegheny	0	0	11	9	0	310	79	0	0	0
Armstrong	0	0	2	2	0	646	37	0	0	0
Beaver	0	0	1	1	0	662	3	0	0	0
Bedford	0	0	1	1	0	271	100	0	0	0
Berks	1	0	14	10	1	562	179	0	0	0
Blair	0	0	3	3	0	91	37	0	0	0
Bradford	1	0	4	4	1	437	9	0	0	0
Bucks	158	0	274	252	153	688	158	3	0	2
Butler	0	0	3	1	0	159	18	0	0	0
Cambria	0	0	2	2	0	952	27	0	0	0
Cameron	0	0	0	0	0	187	13	0	0	0
Carbon	0	0	5	5	0	437	83	0	0	0
Centre	1	0	20	17	1	805	102	0	0	0
Chester	9	0	57	50	6	1004	113	1	0	2
Clarion	0	0	0	0	0	144	9	0	0	0
Clearfield	0	0	3	2	0	388	64	0	0	0
Clinton	0	0	5	3	0	320	30	0	0	0
Columbia	0	0	0	0	0	591	36	0	0	0
Crawford	0	0	2	2	0	919	158	0	0	0
Cumberland	2	0	33	30	2	351	116	0	0	0
Dauphin	1	0	37	35	1	561	204	0	0	0
Delaware	31	1	55	54	29	822	78	0	0	1
Elk	0	0	2	2	0	123	11	0	0	0
Erie	1	0	1	1	0	706	314	1	0	0
Fayette	1	1	2	1	0	348	37	0	0	0
Forest	0	0	0	0	0	302	7	0	0	0
Franklin	1	0	9	7	1	424	23	0	0	0
Fulton	0	0	2	1	0	13	1	0	0	0
Greene	0	0	4	4	0	248	15	0	0	0
Huntingdon	0	0	3	2	0	393	27	0	0	0
Indiana	0	0	1	0	0	638	21	0	0	0
Jefferson	0	0	3	2	0	223	19	0	0	0
Juniata	0	0	6	6	0	215	68	0	0	0
Lackawanna	0	0	3	3	0	511	42	0	0	0
Lancaster	9	0	58	55	9	703	84	0	0	0
Lawrence	0	0	7	5	0	117	39	0	0	0
Lebanon	0	0	15	15	0	316	31	0	0	0
Lehigh	4	0	40	35	4	594	197	0	0	0
Luzerne	0	0	8	5	0	830	361	0	0	0
Lycoming	0	0	7	7	0	1060	199	0	0	0
McKean	0	0	5	4	0	612	101	0	0	0
Mercer	0	0	8	8	0	1007	51	0	0	0
Mifflin	0	0	0	0	0	278	90	0	0	0
Monroe	0	0	4	2	0	450	158	0	0	0
Montgomery	58	0	129	112	55	1210	198	1	0	2
Montour	0	0	0	0	0	388	25	0	0	0
Northampton	0	0	18	13	0	460	106	0	0	0
Northumberland	0	0	3	3	0	333	18	0	0	0
Perry	0	0	6	5	0	482	8	0	0	0
Philadelphia	130	1	136	122	93	516	379	36	0	0
Pike	1	0	3	2	0	940	124	1	0	0
Potter	0	0	0	0	0	1135	186	0	0	0
Schuylkill	0	0	3	2	0	567	122	0	0	0
Snyder	0	0	5	5	0	358	19	0	0	0
Somerset	0	0	1	1	0	498	36	0	0	0
Sullivan	0	0	0	0	0	101	3	0	0	0
Susquehanna	0	0	5	5	0	338	58	0	0	0
Tioga	0	0	4	4	0	599	155	0	0	0
Union	0	0	5	4	0	439	149	0	0	0
Venango	0	0	2	2	0	549	88	0	0	0
Warren	0	0	9	4	0	801	87	0	0	0
Washington	0	0	2	2	0	429	44	0	0	0
Wayne	0	0	5	2	0	339	28	0	0	0
Westmoreland	0	0	5	4	0	474	83	0	0	0
Wyoming	0	0	3	3	0	601	124	0	0	0
York	5	0	45	42	5	815	314	0	0	0
TOTAL	414	3	1115	990	361	34424	5951	43	0	7
Positive Counties		17
Counties with Human Positives		3
Counties with Dead Bird Positives		14
Counties with Mosquuito Positives		6
Counties with Sentinel Positives		0
Counties with Veterinary Positives		4

Human Positives Reported

(Most recent cases reported at top of table)

County	Age	Gender	Date Reported
Philadelphia	60	M	9/26/2001
Delaware	49	F	9/13/2001
Fayette	60	M	9/12/2001

Mosquito Positives Collected

Mosquito samples may consist of 1 or more mosquito pools with 1 or more species
Samples below ordered by County, then by Recent Date

County	Municipality	Date	Species
Bucks County Mosquito Samples
Bucks	Bristol Twp	9/20/2001	Culex pipiens
Bucks	Bristol Twp	9/20/2001	Culex pipiens
Bucks	Bristol Twp	8/22/2001	Culex pipiens
Chester County Mosquito Samples
Chester	London Grove Twp	8/29/2001	Culex pipiens
Erie County Mosquito Samples
Erie	Erie City	7/26/2001	Culex pipiens
Montgomery County Mosquito Samples
Montgomery	Pottstown Boro	8/29/2001	Ochlerotatus trivittatus
Philadelphia County Mosquito Samples
Philadelphia	Philadelphia City	10/24/2001	Culex salinarius
Philadelphia	Philadelphia City	10/24/2001	Culex salinarius
Philadelphia	Philadelphia City	10/5/2001	Aedes vexans
			Culex pipiens
Philadelphia	Philadelphia City	10/5/2001	Culex pipiens
Philadelphia	Philadelphia City	10/5/2001	Culex pipiens
Philadelphia	Philadelphia City	9/28/2001	Culex salinarius
Philadelphia	Philadelphia City	9/25/2001	Culex salinarius
Philadelphia	Philadelphia City	9/25/2001	Culex salinarius
Philadelphia	Philadelphia City	9/22/2001	Culex salinarius
Philadelphia	Philadelphia City	9/22/2001	Culex salinarius
Philadelphia	Philadelphia City	9/20/2001	Culex pipiens
Philadelphia	Philadelphia City	9/12/2001	Culex pipiens
Philadelphia	Philadelphia City	9/12/2001	Culex pipiens
Philadelphia	Philadelphia City	9/12/2001	Culex salinarius
Philadelphia	Philadelphia City	9/12/2001	Culex salinarius
Philadelphia	Philadelphia City	9/7/2001	Culex pipiens
Philadelphia	Philadelphia City	9/7/2001	Culex pipiens
Philadelphia	Philadelphia City	9/7/2001	Culex pipiens
Philadelphia	Philadelphia City	9/7/2001	Culex salinarius
Philadelphia	Philadelphia City	9/5/2001	Culex salinarius
Philadelphia	Philadelphia City	9/5/2001	Culex salinarius
Philadelphia	Philadelphia City	8/31/2001	Culex pipiens
Philadelphia	Philadelphia City	8/30/2001	Culex pipiens
Philadelphia	Philadelphia City	8/29/2001	Culex salinarius
Philadelphia	Philadelphia City	8/28/2001	Culex salinarius
Philadelphia	Philadelphia City	8/28/2001	Culex salinarius
Philadelphia	Philadelphia City	8/24/2001	Culex salinarius
Philadelphia	Philadelphia City	8/24/2001	Culex salinarius
Philadelphia	Philadelphia City	8/24/2001	Culex salinarius
Philadelphia	Philadelphia City	8/24/2001	Culex salinarius
Philadelphia	Philadelphia City	8/20/2001	Other
Philadelphia	Philadelphia City	8/20/2001	Culex salinarius
Philadelphia	Philadelphia City	8/17/2001	Culex salinarius
Philadelphia	Philadelphia City	8/17/2001	Culex pipiens
Philadelphia	Philadelphia City	8/16/2001	Culex pipiens
Philadelphia	Philadelphia City	8/8/2001	Culex salinarius
Pike County Mosquito Samples
Pike	Westfall Twp	10/24/2001	Culex pipiens

Avian Positives Collected

County	Municipality	Date Collected	Species
Chester	Tredyffrin Twp	11/1/2001	American Crow
Bucks	Buckingham Twp	10/31/2001	American Crow
Delaware	Upper Darby Twp	10/30/2001	American Crow
Bucks	Upper Southampton Twp	10/29/2001	American Crow
Bucks	West Rockhill Twp	10/29/2001	American Crow
Bucks	West Rockhill Twp	10/29/2001	American Crow
Montgomery	Upper Gwynedd Twp	10/29/2001	American Crow
Montgomery	Upper Gwynedd Twp	10/29/2001	American Crow
Bucks	Warminster Twp	10/24/2001	American Crow
Lancaster	Lancaster City	10/24/2001	American Crow
Bucks	Chalfont Boro	10/22/2001	American Crow
Bucks	East Rockhill Twp	10/22/2001	American Crow
Bucks	Northampton Twp	10/19/2001	American Crow
Bucks	Warminster Twp	10/19/2001	Blue Jay
Delaware	Upper Darby Twp	10/18/2001	American Crow
Montgomery	Abington Twp	10/18/2001	American Crow
Montgomery	Lower Moreland Twp	10/18/2001	American Crow
Bucks	Falls Twp	10/17/2001	American Crow
Bucks	Newtown Twp	10/17/2001	American Crow
Lehigh	South Whitehall Twp	10/17/2001	American Crow
Bucks	Falls Twp	10/16/2001	American Crow
Bucks	Newtown Twp	10/16/2001	American Crow
Lehigh	South Whitehall Twp	10/16/2001	American Crow
Bucks	Bristol Twp	10/12/2001	American Crow
Bucks	Bristol Twp	10/12/2001	American Crow
Bucks	Lower Southampton Twp	10/12/2001	American Crow
Bucks	Bensalem Twp	10/11/2001	American Crow
Bucks	Bristol Twp	10/11/2001	American Crow
Bucks	Warminster Twp	10/11/2001	American Crow
Montgomery	Cheltenham Twp	10/11/2001	American Crow
Montgomery	Lower Salford Twp	10/11/2001	American Crow
Montgomery	Lower Salford Twp	10/11/2001	American Crow
Bucks	Bensalem Twp	10/10/2001	American Crow
Bucks	Bristol Twp	10/10/2001	American Crow
Bucks	Bristol Twp	10/10/2001	American Crow
Bucks	Middletown Twp	10/10/2001	American Crow
Bucks	Northampton Twp	10/10/2001	American Crow
Bucks	Warminster Twp	10/10/2001	American Crow
Cumberland	Hampden Twp	10/10/2001	American Crow
Montgomery	East Norriton Twp	10/10/2001	American Crow
Bucks	Bristol Twp	10/9/2001	American Crow
Bucks	Bristol Twp	10/9/2001	American Crow
Bucks	Bristol Twp	10/9/2001	American Crow
Bucks	Lower Southampton Twp	10/9/2001	American Crow
Bucks	Warminster Twp	10/9/2001	American Crow
Delaware	Radnor Twp	10/9/2001	American Crow
Delaware	Sharon Hill Boro	10/9/2001	American Crow
Lancaster	East Hempfield Twp	10/9/2001	American Crow
Montgomery	Lower Merion Twp	10/9/2001	American Crow
Montgomery	Springfield Twp	10/9/2001	Other Bird
Montgomery	Upper Moreland Twp	10/9/2001	American Crow
Dauphin	Harrisburg City	10/7/2001	American Crow
Bucks	Upper Southampton Twp	10/5/2001	American Crow
Bucks	Warminster Twp	10/5/2001	American Crow
Philadelphia	Philadelphia City	10/5/2001	American Crow
Bucks	Bensalem Twp	10/4/2001	American Crow
Bucks	Bensalem Twp	10/4/2001	American Crow
Bucks	Tullytown Boro	10/4/2001	American Crow
Bucks	Wrightstown Twp	10/4/2001	American Crow
Lancaster	Manheim Twp	10/4/2001	American Crow
Philadelphia	Philadelphia City	10/4/2001	American Crow
Philadelphia	Philadelphia City	10/4/2001	American Crow
Philadelphia	Philadelphia City	10/4/2001	American Crow
Bucks	Bensalem Twp	10/3/2001	American Crow
Bucks	Doylestown Twp	10/3/2001	Blue Jay
Bucks	Falls Twp	10/3/2001	American Crow
Bucks	Lower Southampton Twp	10/3/2001	American Crow
Montgomery	Abington Twp	10/3/2001	American Crow
Montgomery	East Norriton Twp	10/3/2001	American Crow
Montgomery	Upper Merion Twp	10/3/2001	American Crow
Philadelphia	Philadelphia City	10/3/2001	American Crow
Philadelphia	Philadelphia City	10/3/2001	American Crow
Philadelphia	Philadelphia City	10/3/2001	American Crow
Bucks	Bensalem Twp	10/2/2001	American Crow
Bucks	Bristol Twp	10/2/2001	American Crow
Bucks	Bristol Twp	10/2/2001	American Crow
Bucks	Falls Twp	10/2/2001	American Crow
Bucks	Middletown Twp	10/2/2001	American Crow
Bucks	Warminster Twp	10/2/2001	American Crow
Lancaster	West Hempfield Twp	10/2/2001	American Crow
Lehigh	Upper Macungie Twp	10/2/2001	Blue Jay
Montgomery	Lower Merion Twp	10/2/2001	American Crow
Montgomery	Plymouth Twp	10/2/2001	American Crow
Montgomery	Upper Dublin Twp	10/2/2001	American Crow
Montgomery	Upper Moreland Twp	10/2/2001	American Crow
Philadelphia	Philadelphia City	10/2/2001	American Crow
Philadelphia	Philadelphia City	10/2/2001	American Crow
York	York City	10/2/2001	American Crow
Bucks	Middletown Twp	10/1/2001	American Crow
Bucks	Middletown Twp	10/1/2001	Blue Jay
Bucks	Warminster Twp	10/1/2001	American Crow
Chester	Oxford Boro	10/1/2001	American Crow
Lancaster	Ephrata Twp	10/1/2001	American Crow
Philadelphia	Philadelphia City	10/1/2001	American Crow
Philadelphia	Philadelphia City	10/1/2001	American Crow
Philadelphia	Philadelphia City	10/1/2001	American Crow
York	York City	10/1/2001	American Crow
Philadelphia	Philadelphia City	9/29/2001	American Crow
Bucks	Bensalem Twp	9/28/2001	Blue Jay
Bucks	Bristol Boro	9/28/2001	American Crow
Bucks	Falls Twp	9/28/2001	American Crow
Bucks	Warminster Twp	9/28/2001	American Crow
Philadelphia	Philadelphia City	9/28/2001	American Crow
Philadelphia	Philadelphia City	9/28/2001	American Crow
Bucks	Warrington Twp	9/27/2001	American Crow
Chester	Uwchlan Twp	9/27/2001	American Crow
Delaware	Folcroft Boro	9/27/2001	American Crow
Delaware	Prospect Park Boro	9/27/2001	American Crow
Delaware	Upper Darby Twp	9/27/2001	American Crow
Montgomery	Lower Gwynedd Twp	9/27/2001	American Crow
Montgomery	Springfield Twp	9/27/2001	American Crow
Philadelphia	Philadelphia City	9/27/2001	American Crow
Philadelphia	Philadelphia City	9/27/2001	American Crow
Philadelphia	Philadelphia City	9/27/2001	American Crow
Philadelphia	Philadelphia City	9/27/2001	American Crow
Bucks	Bristol Twp	9/26/2001	American Crow
Bucks	Bristol Twp	9/26/2001	American Crow
Bucks	Warrington Twp	9/26/2001	American Crow
Chester	Willistown Twp	9/26/2001	American Crow
Montgomery	Conshohocken Boro	9/26/2001	American Crow
Montgomery	Horsham Twp	9/26/2001	American Crow
Philadelphia	Philadelphia City	9/26/2001	American Crow
Philadelphia	Philadelphia City	9/26/2001	American Crow
Philadelphia	Philadelphia City	9/26/2001	American Crow
Philadelphia	Philadelphia City	9/26/2001	American Crow
Berks	Bally Boro	9/25/2001	American Crow
Bucks	Bristol Twp	9/25/2001	American Crow
Bucks	Bristol Twp	9/25/2001	American Crow
Bucks	Bristol Twp	9/25/2001	Blue Jay
Bucks	Upper Southampton Twp	9/25/2001	American Crow
Bucks	Warminster Twp	9/25/2001	American Crow
Montgomery	Abington Twp	9/25/2001	American Crow
Philadelphia	Philadelphia City	9/25/2001	American Crow
Philadelphia	Philadelphia City	9/25/2001	American Crow
Bradford	Orwell Twp	9/24/2001	American Crow
Bucks	Bensalem Twp	9/24/2001	American Crow
Bucks	Bensalem Twp	9/24/2001	Blue Jay
Bucks	Bristol Twp	9/24/2001	American Crow
Bucks	Falls Twp	9/24/2001	American Crow
Bucks	Middletown Twp	9/24/2001	American Crow
Lancaster	Upper Leacock Twp	9/24/2001	American Crow
Montgomery	Hatboro Boro	9/24/2001	American Crow
Montgomery	Whitemarsh Twp	9/24/2001	American Crow
Philadelphia	Philadelphia City	9/24/2001	American Crow
Philadelphia	Philadelphia City	9/24/2001	American Crow
Philadelphia	Philadelphia City	9/24/2001	American Crow
Philadelphia	Philadelphia City	9/23/2001	American Crow
Philadelphia	Philadelphia City	9/23/2001	American Crow
Philadelphia	Philadelphia City	9/23/2001	American Crow
Bucks	Bensalem Twp	9/21/2001	American Crow
Bucks	Bristol Twp	9/21/2001	American Crow
Bucks	Bristol Twp	9/21/2001	American Crow
Bucks	Warminster Twp	9/21/2001	American Crow
Montgomery	Springfield Twp	9/21/2001	American Crow
Bucks	Bristol Twp	9/20/2001	American Crow
Bucks	Falls Twp	9/20/2001	American Crow
Bucks	Falls Twp	9/20/2001	American Crow
Bucks	Upper Southampton Twp	9/20/2001	American Crow
Bucks	Upper Southampton Twp	9/20/2001	American Crow
Lehigh	South Whitehall Twp	9/20/2001	American Crow
Bucks	Bristol Boro	9/19/2001	Blue Jay
Bucks	Bristol Twp	9/19/2001	American Crow
Bucks	Bristol Twp	9/19/2001	American Crow
Bucks	Lower Southampton Twp	9/19/2001	American Crow
Bucks	Lower Southampton Twp	9/19/2001	American Crow
Bucks	Northampton Twp	9/19/2001	American Crow
Delaware	Collingdale Boro	9/19/2001	American Crow
Delaware	Ridley Twp	9/19/2001	American Crow
Franklin	Greene Twp	9/19/2001	American Crow
Lancaster	Providence Twp	9/19/2001	American Crow
Montgomery	Hatfield Twp	9/19/2001	American Crow
Montgomery	Lower Merion Twp	9/19/2001	American Crow
Montgomery	Lower Moreland Twp	9/19/2001	American Crow
Montgomery	Upper Moreland Twp	9/19/2001	American Crow
Philadelphia	Philadelphia City	9/19/2001	American Crow
Philadelphia	Philadelphia City	9/19/2001	American Crow
Bucks	Bensalem Twp	9/18/2001	American Crow
Bucks	Bensalem Twp	9/18/2001	American Crow
Bucks	Bensalem Twp	9/18/2001	American Crow
Bucks	Falls Twp	9/18/2001	American Crow
Bucks	Morrisville Boro	9/18/2001	American Crow
Delaware	Norwood Boro	9/18/2001	American Crow
Philadelphia	Philadelphia City	9/18/2001	American Crow
Philadelphia	Philadelphia City	9/18/2001	Blue Jay
York	Spring Garden Twp	9/18/2001	American Crow
Bucks	Bensalem Twp	9/17/2001	American Crow
Bucks	Bristol Twp	9/17/2001	American Crow
Bucks	Bristol Twp	9/17/2001	American Crow
Bucks	Bristol Twp	9/17/2001	American Crow
Bucks	Northampton Twp	9/17/2001	American Crow
Bucks	Warminster Twp	9/17/2001	American Crow
Delaware	Collingdale Boro	9/17/2001	American Crow
Delaware	Haverford Twp	9/17/2001	American Crow
Delaware	Haverford Twp	9/17/2001	American Crow
Montgomery	Abington Twp	9/17/2001	American Crow
Montgomery	Plymouth Twp	9/17/2001	American Crow
Delaware	Glenolden Boro	9/16/2001	American Crow
Delaware	Norwood Boro	9/16/2001	American Crow
Bucks	Bristol Boro	9/14/2001	American Crow
Bucks	Chalfont Boro	9/13/2001	American Crow
Bucks	Northampton Twp	9/13/2001	American Crow
Bucks	Northampton Twp	9/13/2001	American Crow
Bucks	Warminster Twp	9/13/2001	American Crow
Delaware	Chester Twp	9/13/2001	American Crow
Delaware	Upper Darby Twp	9/13/2001	American Crow
Lancaster	East Lampeter Twp	9/13/2001	Blue Jay
Bucks	Bensalem Twp	9/12/2001	American Crow
Bucks	Bensalem Twp	9/12/2001	American Crow
Bucks	Bristol Twp	9/12/2001	American Crow
Bucks	Falls Twp	9/12/2001	American Crow
Bucks	Middletown Twp	9/12/2001	American Crow
Bucks	Warrington Twp	9/12/2001	American Crow
Philadelphia	Philadelphia City	9/12/2001	American Crow
Philadelphia	Philadelphia City	9/12/2001	American Crow
Philadelphia	Philadelphia City	9/12/2001	Other Bird
Philadelphia	Philadelphia City	9/12/2001	Other Bird
Bucks	Bristol Twp	9/11/2001	American Crow
Bucks	Bristol Twp	9/11/2001	American Crow
Bucks	Lower Makefield Twp	9/11/2001	American Crow
Bucks	Lower Southampton Twp	9/11/2001	American Crow
Bucks	Bristol Boro	9/10/2001	American Crow
Bucks	Bristol Boro	9/10/2001	American Crow
Bucks	Bristol Twp	9/10/2001	American Crow
Bucks	Bristol Twp	9/10/2001	American Crow
Bucks	Bristol Twp	9/10/2001	Blue Jay
Chester	East Goshen Twp	9/10/2001	American Crow
Delaware	Springfield Twp	9/10/2001	American Crow
Montgomery	Lower Merion Twp	9/10/2001	American Crow
Montgomery	Upper Dublin Twp	9/10/2001	American Crow
Bucks	Bristol Twp	9/7/2001	American Crow
Bucks	Bristol Twp	9/7/2001	American Crow
Philadelphia	Philadelphia City	9/7/2001	American Crow
Philadelphia	Philadelphia City	9/7/2001	American Crow
Philadelphia	Philadelphia City	9/7/2001	American Crow
Philadelphia	Philadelphia City	9/7/2001	American Crow
York	Springettsbury Twp	9/7/2001	American Crow
Bucks	Bensalem Twp	9/6/2001	American Crow
Bucks	Bristol Twp	9/6/2001	American Crow
Bucks	Doylestown Twp	9/6/2001	American Crow
Bucks	Lower Southampton Twp	9/6/2001	American Crow
Bucks	Warminster Twp	9/6/2001	American Crow
Delaware	Springfield Twp	9/6/2001	American Crow
Bucks	Lower Makefield Twp	9/5/2001	American Crow
Montgomery	Abington Twp	9/5/2001	American Crow
Bucks	Bensalem Twp	9/4/2001	Blue Jay
Bucks	Bristol Twp	9/4/2001	American Crow
Bucks	Bristol Twp	9/4/2001	American Crow
Bucks	Bristol Twp	9/4/2001	American Crow
Bucks	Falls Twp	9/4/2001	American Crow
Bucks	Lower Makefield Twp	9/4/2001	American Crow
Bucks	Lower Makefield Twp	9/4/2001	American Crow
Bucks	Lower Southampton Twp	9/4/2001	American Crow
Bucks	Middletown Twp	9/4/2001	American Crow
Bucks	Warminster Twp	9/4/2001	American Crow
Delaware	Haverford Twp	9/4/2001	American Crow
Delaware	Lansdowne Boro	9/4/2001	American Crow
Delaware	Sharon Hill Boro	9/4/2001	Blue Jay
Montgomery	Horsham Twp	9/4/2001	American Crow
Montgomery	Lower Merion Twp	9/4/2001	American Crow
Montgomery	Upper Dublin Twp	9/4/2001	American Crow
Montgomery	Upper Dublin Twp	9/4/2001	American Crow
Philadelphia	Philadelphia City	9/3/2001	Other Bird
Bucks	Bensalem Twp	8/31/2001	American Crow
Bucks	Lower Southampton Twp	8/31/2001	American Crow
Bucks	Lower Southampton Twp	8/31/2001	American Crow
Cumberland	East Pennsboro Twp	8/31/2001	American Crow
Lancaster	East Hempfield Twp	8/31/2001	American Crow
Bucks	Bristol Twp	8/30/2001	American Crow
Bucks	Bristol Twp	8/30/2001	American Crow
Bucks	Doylestown Boro	8/30/2001	American Crow
Montgomery	Hatboro Boro	8/30/2001	American Crow
Philadelphia	Philadelphia City	8/30/2001	American Crow
Philadelphia	Philadelphia City	8/30/2001	Other Bird
Bucks	Warminster Twp	8/29/2001	American Crow
Bucks	Warrington Twp	8/29/2001	American Crow
Delaware	Darby Twp	8/29/2001	American Crow
Delaware	Darby Twp	8/29/2001	American Crow
Montgomery	Upper Dublin Twp	8/29/2001	American Crow
Philadelphia	Philadelphia City	8/29/2001	American Crow
Philadelphia	Philadelphia City	8/29/2001	American Crow
Philadelphia	Philadelphia City	8/29/2001	American Crow
Montgomery	Cheltenham Twp	8/28/2001	American Crow
Philadelphia	Philadelphia City	8/28/2001	American Crow
Philadelphia	Philadelphia City	8/28/2001	American Crow
Bucks	Falls Twp	8/27/2001	American Crow
Bucks	Warrington Twp	8/27/2001	Blue Jay
Montgomery	Cheltenham Twp	8/27/2001	American Crow
Montgomery	Lower Merion Twp	8/27/2001	American Crow
Montgomery	Lower Merion Twp	8/27/2001	American Crow
Montgomery	Springfield Twp	8/27/2001	American Crow
Philadelphia	Philadelphia City	8/27/2001	American Crow
Philadelphia	Philadelphia City	8/27/2001	American Crow
Philadelphia	Philadelphia City	8/27/2001	American Crow
Philadelphia	Philadelphia City	8/26/2001	Blue Jay
Philadelphia	Philadelphia City	8/25/2001	American Crow
Philadelphia	Philadelphia City	8/25/2001	American Crow
Philadelphia	Philadelphia City	8/25/2001	American Crow
Bucks	Falls Twp	8/24/2001	American Crow
Delaware	Upper Darby Twp	8/24/2001	American Crow
Montgomery	Upper Moreland Twp	8/24/2001	American Crow
Philadelphia	Philadelphia City	8/24/2001	American Crow
Philadelphia	Philadelphia City	8/24/2001	American Crow
Bucks	Bensalem Twp	8/23/2001	American Crow
Centre	State College Boro	8/23/2001	Sharp-shinned Hawk
Montgomery	Abington Twp	8/23/2001	American Crow
Montgomery	Upper Dublin Twp	8/23/2001	American Crow
Philadelphia	Philadelphia City	8/23/2001	American Crow
Bucks	Bristol Twp	8/22/2001	American Crow
Bucks	Lower Southampton Twp	8/22/2001	American Crow
Bucks	Lower Southampton Twp	8/22/2001	American Crow
Delaware	Sharon Hill Boro	8/22/2001	American Crow
Delaware	Springfield Twp	8/22/2001	American Crow
Philadelphia	Philadelphia City	8/22/2001	American Crow
Philadelphia	Philadelphia City	8/22/2001	American Crow
Philadelphia	Philadelphia City	8/22/2001	American Crow
Philadelphia	Philadelphia City	8/22/2001	American Crow
Philadelphia	Philadelphia City	8/22/2001	American Crow
Montgomery	Whitemarsh Twp	8/21/2001	American Crow
Bucks	Bensalem Twp	8/20/2001	American Crow
Montgomery	Upper Dublin Twp	8/20/2001	Blue Jay
York	Penn Twp	8/20/2001	American Crow
Montgomery	Abington Twp	8/19/2001	American Crow
Philadelphia	Philadelphia City	8/19/2001	American Crow
Philadelphia	Philadelphia City	8/19/2001	American Crow
Philadelphia	Philadelphia City	8/19/2001	American Crow
Philadelphia	Philadelphia City	8/19/2001	American Crow
Philadelphia	Philadelphia City	8/19/2001	American Crow
Philadelphia	Philadelphia City	8/19/2001	American Crow
Philadelphia	Philadelphia City	8/19/2001	American Crow
Philadelphia	Philadelphia City	8/19/2001	American Crow
Montgomery	West Norriton Twp	8/18/2001	American Crow
Philadelphia	Philadelphia City	8/18/2001	American Crow
Philadelphia	Philadelphia City	8/18/2001	American Crow
Philadelphia	Philadelphia City	8/18/2001	American Crow
Philadelphia	Philadelphia City	8/17/2001	American Crow
Philadelphia	Philadelphia City	8/17/2001	American Crow
Philadelphia	Philadelphia City	8/17/2001	American Crow
Philadelphia	Philadelphia City	8/17/2001	American Crow
Philadelphia	Philadelphia City	8/17/2001	American Crow
Philadelphia	Philadelphia City	8/17/2001	American Crow
Philadelphia	Philadelphia City	8/17/2001	American Crow
Philadelphia	Philadelphia City	8/17/2001	American Crow
Bucks	Bensalem Twp	8/16/2001	American Crow
Bucks	Bristol Twp	8/16/2001	American Crow
Bucks	Bristol Twp	8/15/2001	American Crow
Bucks	Falls Twp	8/15/2001	American Crow
Chester	West Marlborough Twp	8/15/2001	Other Bird
Philadelphia	Philadelphia City	8/14/2001	American Crow
Philadelphia	Philadelphia City	8/14/2001	American Crow
Philadelphia	Philadelphia City	8/14/2001	American Crow
Philadelphia	Philadelphia City	8/10/2001	American Crow
Montgomery	Upper Dublin Twp	8/9/2001	American Crow
Philadelphia	Philadelphia City	8/9/2001	American Crow
Bucks	Bristol Twp	8/7/2001	American Crow
Bucks	Warminster Twp	8/7/2001	American Crow
Delaware	Collingdale Boro	8/6/2001	American Crow
Philadelphia	Philadelphia City	8/6/2001	American Crow
Montgomery	Abington Twp	8/3/2001	American Crow
Philadelphia	Philadelphia City	8/3/2001	American Crow
Delaware	Upper Darby Twp	8/1/2001	American Crow
Philadelphia	Philadelphia City	7/25/2001	American Crow

Sentinel Positives Reported

County	Municipality	Date Collected	Animal Type

Veterinary Positives Collected

County	Municipality	Date Collected	Animal Type
Bucks	N/A	8/1/2001	Equine
Montgomery	N/A	8/22/2001	Equine
Chester	N/A	9/4/2001	Equine
Montgomery	N/A	9/10/2001	Equine
Bucks	N/A	9/7/2001	Equine
Delaware	N/A	9/11/2001	Equine

Dead birds

When a dead bird is sighted, the information about that bird is recorded. If the bird meets the criteria for testing, it is collected and sent for testing. Samples are from each bird are tested for WNV. This table records the surveillance effort in Pennsylvania by whole birds,rather than partial tissues from the birds.

Mosquitoes

All mosquitoes collected in one effort create a sample of mosquitoes. This sample is sent to the lab for identification. A sample can include either larval or adult mosquitoes. Only adult mosquitoes are tested for WNV. All mosquitoes are identified, and adults are divided into subsamples by species for testing. This table records the surveillance effort in Pennsylvania by samples, rather than subsamples of mosquitoes.

Veterinary Samples

Equine diagnostic blood samples submitted by veterinarians across the state will be tested for WNV. Since it is impossible to differentiate between naturally infected horses and vaccinated horses, it is important that the vaccination history of any horse that is being tested be provided to the laboratory. A reporting form is available for submission with samples from the Pennsylvania Veterinary Laboratory.

A multi-agency cooperative effort between: