Summary of Tick Testing Results for 2000

Summary of Tick Testing Results for 2000

A total of 7165 ticks feeding on humans were submitted for identification in 2000. Of these, 6366 were tested for the presence of Borrelia burgdorferi, the causative organism of Lyme disease, and 1502 (24%) were found to carry this organism. All infected ticks were deer ticks except for one lone star tick from Norwalk. The names of the tick species and numbers of specimens received are shown in the table below.

Name of Species

Common Name

Total

Ixodes scapularis

Black-legged ("deer") Tick

6687

Dermacentor variabilis

American Dog Tick

411

Amblyomma americanum

Lone Star Tick

63

Ixodes cookei

(normally on woodchucks)

3

Ixodes dentatus

(normally on rabbits)

1

Most of the ticks received by us are the black-legged or "deer" ticks. Below is a table comparing the numbers and infection rates of deer ticks over the past five years.

Year

Total Identified

Total Tested

Total Positive

Percent Positive

1996

5108

4829

1038

22

1997

2800

2621

526

20

1998

4401

4101

1064

26

1999

6679

6337

1491

24

2000

6687

6299

1501

24

The number of deer ticks submitted from each town and the number infected are summarized by town for the year 2000. If the town is served by a health district, its totals are included with the town listed in the second column. For example, Ansonia is served by the Naugatuck Valley Health District, which is located in Shelton. Any ticks that may have been received from Ansonia through the health district are included in the totals for Shelton. Those totals reflect the data for all the towns served by the health district. For a directory of local health departments and districts, see the state website at www.state.ct.us/dph/local_health/localhealthdir.htm.

Town

Hlth. Dist. Town

Total Identified

Total Tested

Total Positive

Percent Positive

Andover

0

0

0

0.00%

Ansonia

Shelton

3

2

1

50.00%

Ashford

Killingly

Avon

210

199

35

17.59%

Barkhamsted

Avon

Beacon Falls

Shelton

Berlin

Wethersfield

6

6

0

0.00%

Bethany

38

38

7

18.42%

Bethel

50

42

6

14.29%

Bethlehem

Torrington

Bloomfield

West Hartford

Bolton

Mansfield

Bozrah

0

0

0

0.00%

Branford

45

44

6

13.64%

Bridgeport

17

17

2

11.76%

Bridgewater

2

2

1

50.00%

Bristol

22

0

0

0.00%

Brookfield

34

29

2

6.90%

Brooklyn

Killingly

1

1

0

0.00%

Burlington

Bristol

1

1

0

0.00%

Canaan

0

0

0

0.00%

Canterbury

Killingly

Canton

Avon

2

2

1

50.00%

Chaplin

0

0

0

0.00%

Cheshire

94

92

17

18.48%

Chester

1

1

0

0.00%

Clinton

9

9

1

11.11%

Colchester

2

2

0

0.00%

Colebrook

Avon

Columbia

0

0

0

0.00%

Cornwall

Torrington

Coventry

Mansfield

Cromwell

1

1

0

0.00%

Danbury

1

1

1

100.00%

Darien

373

360

88

24.44%

Deep River

0

0

0

0.00%

Derby

Shelton

5

1

0

0.00%

Durham

2

2

1

50.00%

East Granby

Avon

East Haddam

4

3

1

33.33%

East Hampton

6

4

2

50.00%

East Hartford

1

1

0

0.00%

East Haven

Branford

1

1

1

100.00%

East Lyme

0

0

0

0.00%

East Windsor

Enfield

Eastford

Killingly

Easton

40

36

7

19.44%

Ellington

Enfield

Enfield

24

17

5

29.41%

Essex

2

2

0

0.00%

Fairfield

56

54

13

24.07%

Farmington

Avon

Franklin

0

0

0

0.00%

Glastonbury

7

6

1

16.67%

Goshen

Torrington

Granby

Avon

Greenwich

684

667

181

27.14%

Griswold

1

1

0

0.00%

Groton

3

3

0

0.00%

Guilford

56

55

8

14.55%

Haddam

1

0

0

0.00%

Hamden

North Haven

6

6

2

33.33%

Hampton

Killingly

Hartford

10

8

0

0.00%

Hartland

Avon

1

1

1

100.00%

Harwinton

Torrington

Hebron

2

1

1

100.00%

Kent

Torrington

Killingly

116

106

28

26.42%

Killingworth

2

2

0

0.00%

Lebanon

3

3

0

0.00%

Ledyard

2

2

0

0.00%

Lisbon

0

0

0

0.00%

Litchfield

Torrington

Lyme

6

6

0

0.00%

Madison

24

23

6

26.09%

Manchester

11

11

4

36.36%

Mansfield

10

10

3

30.00%

Marlborough

0

0

0

0.00%

Meriden

17

15

0

0.00%

Middlebury

17

14

2

14.29%

Middlefield

1

1

0

0.00%

Middletown

6

5

2

40.00%

Milford

21

21

6

28.57%

Monroe

70

63

8

12.70%

Montville

Norwich

Morris

Torrington

Naugatuck

Shelton

1

1

0

0.00%

New Britain

29

7

2

28.57%

New Canaan

368

342

86

25.15%

New Fairfield

22

20

5

25.00%

New Hartford

Avon

New Haven

18

18

3

16.67%

New London

1

1

0

0.00%

New Milford

44

43

13

30.23%

Newington

3

3

0

0.00%

Newtown

398

370

95

25.68%

Norfolk

Torrington

North Branford

Branford

1

1

1

100.00%

North Canaan

0

0

0

0.00%

North Haven

67

64

10

15.63%

North Stonington

0

0

0

0.00%

Norwalk

402

394

97

24.62%

Norwich

17

14

5

35.71%

Old Lyme

10

9

1

11.11%

Old Saybrook

6

5

2

40.00%

Orange

16

16

5

31.25%

Oxford

Southbury

Plainfield

Killingly

Plainville

0

0

0

0.00%

Plymouth

Torrington

Pomfret

Killingly

Portland

1

1

0

0.00%

Preston

1

1

0

0.00%

Prospect

Cheshire

1

1

0

0.00%

Putnam

Killingly

Redding

5

4

2

50.00%

Ridgefield

148

133

30

22.56%

Rocky Hill

Wethersfield

Roxbury

7

7

1

14.29%

Salem

0

0

0

0.00%

Salisbury

Torrington

Scotland

0

0

0

0.00%

Seymour

Shelton

Sharon

0

0

0

0.00%

Shelton

111

109

19

17.43%

Sherman

6

5

2

40.00%

Simsbury

Avon

1

1

0

0.00%

Somers

2

2

0

0.00%

South Windsor

3

3

1

33.33%

Southbury

250

240

59

24.58%

Southington

23

11

2

18.18%

Sprague

0

0

0

0.00%

Stafford

0

0

0

0.00%

Stamford

651

633

157

24.80%

Sterling

Killingly

Stonington

0

0

0

0.00%

Stratford

57

53

10

18.87%

Suffield

Enfield

Thomaston

Torrington

Thompson

Killingly

Tolland

Mansfield

1

1

0

0.00%

Torrington

638

615

160

26.02%

Trumbull

126

118

19

16.10%

Union

Stafford

Vernon

Enfield

4

2

1

50.00%

Voluntown

0

0

0

0.00%

Wallingford

21

18

2

11.11%

Warren

Torrington

Washington

0

0

0

0.00%

Waterbury

64

63

9

14.29%

Waterford

1

1

0

0.00%

Watertown

Torrington

1

1

1

100.00%

West Hartford

10

10

4

40.00%

West Haven

2

2

1

50.00%

Westbrook

0

0

0

0.00%

Weston

Westport

3

1

0

0.00%

Westport

324

314

70

22.29%

Wethersfield

12

12

5

41.67%

Willington

0

0

0

0.00%

Wilton

612

566

151

26.68%

Winchester

Torrington

Windham

Enfield

Windsor

18

11

2

18.18%

Windsor Locks

Enfield

1

1

1

100.00%

Wolcott

Cheshire

Woodbridge

North Haven

1

1

0

0.00%

Woodbury

Southbury

2

2

0

0.00%

Woodstock

Killingly

2

2

1

50.00%