Table 2

Summary of test results for human-biting ticks. Amblyomma americanum nymphs and adults were collected from human-biting tick surveillance programs and tested for the presence of the Panola Mountain Ehrlichia sp. Results are summarized here by the state of reported tick acquisition and life stage or gender (N = nymph, M = male, F = female).

Collection State

# Ticks (N/M/F/Not Recorded)

# POS (N/M/F/unknown)a

% POS


Alabama

8 (2/2/4/0)

0

Arkansas

8 (1/2/4/1)

0

District of Columbia

7 (1/3/3/0)

0

Delaware

12 (8/2/2/0)

0

Florida

7 (3/2/1/1)

0

Georgia

343 (157/87/98/1)

0

Indiana

1 (1/0/0/0)

0

Kansas

67 (32/12/22/1)

0

Kentucky/Tennessee

199 (114/40/45/0)

1 (0/0/1/0)

0.50%

Louisiana

1 (1/0/0/0)

0

Maryland

266 (178/51/37/2)

4 (3/1/0/0)

1.50%

Missouri

10 (3/3/4/0)

1 (0/0/1/0)

10.0%

North Carolina

93 (45/25/23/0)

0

Nebraska

1 (1/0/0/0)

0

New Jersey

265 (163/57/45/3)

7 (3/1/1/2a)

2.64%

New York

1 (1/0/0/0)

0

Ohio

22 (11/7/4/0)

6 (3/1/2/0)

27.3%

Oklahoma

21 (14/3/3/1)

1 (0/0/0/1a)

4.76%

Pennsylvania

4 (1/1/2/0)

0

Rhode Island

1 (0/0/1/0)

0

South Carolina

33 (17/7/9/0)

0

Texas

81 (23/32/26/0)

0

Virginia

368 (199/80/89/0)

1 (1/0/0/0)

0.27%

Unknown/Unrecorded

16 (7/5/4/0)

1 (1/0/0/0)

6.25%


TOTAL

1835 (983/421/426/10)

22 (11/3/5/3)

1.20%


a: When a pool of ticks (2–9 ticks each) was positive, the minimum infection rate (1 tick) is reported. The life stage of the infected tick could not be determined for 3 pools that included more than one life stage.

b: Kentucky and Tennessee ticks were combined, since most of the ticks in this collection centered on the border between these two states.

Loftis et al. BMC Infectious Diseases 2008 8:54   doi:10.1186/1471-2334-8-54

Open Data