Volume 13, Number 5—May 2007
Dispatch
Gulf Coast Ticks (Amblyomma maculatum) and Rickettsia parkeri, United States
Table
Gulf Coast ticks (Amblyomma maculatum) infected with spotted fever group rickettsiae, United States, 1996–2005
Rickettsia sp. identified | State | County | Total ticks positive/total ticks tested* | Year collected | Stage, sex† | Source |
---|---|---|---|---|---|---|
Rickettsia parkeri |
Florida |
Duval |
1/9 |
1999 |
Adult, F |
Vegetation |
Franklin |
3/25 |
2004 |
Adults, M, F |
Vegetation |
||
3/38 |
2005 |
Adults, M, F |
Vegetation |
|||
Georgia |
Bulloch |
2/20 |
1999 |
Adults, M, F |
Vegetation |
|
5/16 |
2003 |
Adults, M, F |
Vegetation |
|||
3/24 |
2005 |
Adults, M, F |
Vegetation |
|||
McIntosh |
1/4 |
2005 |
Adult, F |
Vegetation |
||
Kentucky |
Montgomery |
1/1 |
2003 |
Adult, M |
Human |
|
Mississippi |
Copiah |
1/9 |
2002 |
Adult, M |
Vegetation |
|
Oklahoma |
Pittsburgh |
1/1 |
1997 |
Nymph‡ |
Sigmodon hispidis |
|
South Carolina |
Anderson |
1/4 |
2005 |
Adult, M |
Canis latrans |
|
Noncharacterized Rickettsia sp.§ |
Florida |
Nassau |
1/13 |
1996 |
Adult, F |
Vegetation |
Franklin |
1/38 |
2005 |
Adult, F |
Vegetation |
||
Mississippi |
Copiah |
1/9 |
2002 |
Adult, F |
Vegetation |
|
Georgia |
Bulloch |
1/20 |
1999 |
Adult, F |
Vegetation |
|
1/24 | 2005 | Adult, F | Vegetation |
*Some specimens obtained from a given county during a given year were not collected synchronously.
†Identified by PCR; nonengorged specimens unless otherwise specified.
‡Engorged specimen.
§Based on a unique rompA sequence.