From: Prevalence of Rickettsiales in ticks removed from the skin of outdoor workers in North Carolina
Year collected | Number (%a) of samples testing positive for eachRickettsiaspecies within each tick species | |||||
---|---|---|---|---|---|---|
Rickettsiaspecies | A. americanum[n = 427]b | A. maculatum[n = 4] | D. variabilis[n = 4] | I. scapularis[n=6] | All tick species[n = 441]f | |
R. amblyommii c,d | 2011 | 228 (89.8) | 2 (28.6) | 1 (50.0) | 1 (10.0) | 232 (85.0) |
2012 | 184 (92.5) | -e | - | - | 184 (90.2) | |
Total | 412 (90.9) | 2 (28.6) | 1 (20.0) | 1 (8.3) | 416 (87.2) | |
R. bellii c | 2011 | 1 (0.4) | 1 (14.3) | - | - | 2 (0.7) |
2012 | 3 (1.5) | - | 1 (33.3) | - | 4 (1.9) | |
Total | 4 (0.9) | 1 (14.3) | 1 (20.0) | - | 6 (1.2) | |
R. massiliae c | 2011 | 1 (0.4) | - | - | - | 1 (0.4) |
2012 | - | - | - | - | - | |
Total | 1 (0.2) | - | - | - | 1 (0.2) | |
R. montanensis c,d | 2011 | - | 1 (14.3) | - | 1 (10.0) | 2 (0.7) |
2012 | - | - | 1 (33.3) | - | 1 (0.5) | |
Total | - | 1 (14.3) | 1 (20.0) | 1 (8.3) | 3 (0.6) | |
R. parkeri c,d | 2011 | 5 (2.0) | 2 (28.6) | - | 3 (30.0) | 10 (3.7) |
2012 | 4 (2.0) | - | - | - | 4 (2.0) | |
Total | 9 (2.0) | 2 (28.6) | - | 3 (25.0) | 14 (2.9) | |
R. rickettsii d | 2011 | - | - | - | - | - |
2012 | 1 (0.5) | - | - | - | 1 (0.5) | |
Total | 1 (0.2) | - | - | - | 1 (0.2) | |
Rickettsia sp. Ac,d | 2011 | 7 (2.8) | - | - | - | 7 (2.6) |
2012 | 3 (1.5) | - | 1 (33.3) | - | 4 (2.0) | |
Total | 10 (2.2) | - | 1 (20.0) | - | 11 (2.3) | |
Rickettsia sp. Bd | 2011 | - | - | - | - | - |
2012 | 2 (1.0) | - | - | - | 2 (1.0) | |
Total | 2 (0.4) | - | - | - | 2 (0.4) | |
Rickettsia sp. Cd | 2011 | 2 (0.8) | - | - | 1 (10.0) | 3 (1.1) |
2012 | - | - | - | 2 (100) | 2 (1.0) | |
Total | 2 (0.4) | - | - | 3 (27.3) | 5 (1.0) | |
Rickettsia sp. Dc | 2011 | 1 (0.4) | - | - | - | 1 (0.4) |
2012 | - | - | - | - | - | |
Total | 1 (0.2) | - | - | - | 1 (0.2) | |
Unknown Rickettsiac,d,h | 2011 | 3 (1.2) | 1 (14.3) | - | 4 (40.0) | 8 (3.0) |
2012 | 1 (0.5) | - | - | - | 1 (0.5) | |
Total | 4 (0.9) | 1 (14.3) | - | 4 (33.3) | 9 (1.9) | |
Unknown SFGc | 2011 | 6 (2.4) | - | 1 (50.0) | - | 7 (2.6) |
2012 | 1 (0.5) | - | - | - | 1 (0.5) | |
Total | 7 (1.5) | - | 1 (20.0) | - | 8 (1.7) | |
Total infections | 2011 | 254 | 7 | 2 | 10 | 273 |
2012 | 199 | 0 | 3 | 2 | 204 | |
Total | 453 | 7 | 5 | 12 | 477g |