From: Prevalence of Rickettsiales in ticks removed from the skin of outdoor workers in North Carolina
Number infected (% infected for each tick species) | ||||||
---|---|---|---|---|---|---|
Bacteria | Year | A. americanum | A. maculatum | D. variabilis | I .scapularis | All species |
(n = 821 [734])a | (n= 8) | (n = 37) | (n = 8) | (n = 874 [787])a | ||
Rickettsia | 2011 | 257 (70.6) | 4 (57.1) | 2 (20.0) | 4 (100.0) | 267 (69.4) |
2012 | 202 (54.6) | -b | 8 (29.6) | 2 (50.0) | 212 (52.7) | |
Total | 459 (62.5) | 4 (50.0) | 10 (27.0) | 6 (75.0) | 479 (60.9) | |
E. ewingii | 2011 | 15 (4.1) | - | - | - | 15 (3.9) |
2012 | 37 (10.0) | - | 3 (11.1) | - | 40 (10.0) | |
Total | 52 (7.1) | - | 3 (8.1) | - | 55 (7.0) | |
E. chaffeensis | 2011 | 5 (1.4) | 1 (14.3) | - | - | 6 (1.6) |
2012 | 8 (2.2) | - | - | - | 8 (2.0) | |
Total | 13 (1.8) | 1 (12.5) | - | - | 14 (1.8) | |
A. phagocytophilum | 2011 | - | - | - | - | - |
2012 | 2 (0.5) | - | - | - | 2 (0.5) | |
Total | 2 (0.3) | - | - | - | 2 (0.3) |