Volume 16, Number 5—May 2010
Dispatch
Rickettsiae in Gulf Coast Ticks, Arkansas, USA
Rebecca Trout
, C. Dayton Steelman, Allen L. Szalanski, and Phillip C. Williamson
, C. Dayton Steelman, Allen L. Szalanski, and Phillip C. Williamson
Table
Gulf Coast ticks (Amblyomma maculatum) collected from white-tailed deer and dogs, Arkansas, USA, 2006–2008*
| Source | No. tested | No. (%) positive | Blood meal | gltA positive | rompB-positive groups |
gltA- and rompB-positive groups |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 3 | 4 | 5 | 1 | 2 | 3 | 4 | 6 | NS | ||||||
| White-tailed deer | |||||||||||||||
| Nymph | 8 | 0 | Yes | ||||||||||||
| No | |||||||||||||||
| Male | 46 | 15 (33) | Yes | 2 | 2 | ||||||||||
| No | 5 | 2 | 4 | ||||||||||||
| Female | 41 | 13 (32) | Yes | 2 | 2 | ||||||||||
| No |
3 |
3 |
3 |
||||||||||||
| Total collected from deer |
95 |
28 (29) |
10 |
7 |
0 |
0 |
0 |
0 |
9 |
0 |
0 |
0 |
2 |
||
| Dogs | |||||||||||||||
| Nymph | 8 | 2 (25) | Yes | ||||||||||||
| No | 1 | 1 | |||||||||||||
| Male | 95 | 28 (29) | Yes | 1 | 1 | ||||||||||
| No | 8 | 1 | 1 | 1 | 1 | 8 | 2 | 3 | 1 | ||||||
| Female | 9 | 4 (44) | Yes | ||||||||||||
| No |
1 |
3 |
|||||||||||||
| Total collected from dogs |
112 |
34 (30) |
9 |
2 |
1 |
1 |
1 |
3 |
10 |
2 |
3 |
1 |
1 |
||
| Total ticks collected | 207 | 62 (30) | 19 | 9 | 1 | 1 | 1 | 3 | 19 | 2 | 3 | 1 | 3 | ||
*Of 207 ticks collected, 30% were positive for rickettsiae. Ticks were positive for citrate synthase (gltA) gene only, rickettsial outer membrane protein B (rompB) gene only, or both genes; rompB sequences fell within 6 sequence groups. Ticks were collected from canids during March 2006–January 2008 and from deer during the 2008 deer hunting season. NS, not sequenced.
Page created: December 23, 2010
Page updated: December 23, 2010
Page reviewed: December 23, 2010
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