Volume 12, Number 4—April 2006
Research
Epidemic Spread of Lyme Borreliosis, Northeastern United States
Table 1
Captured mammals and their infestation with Ixodes scapularis *
Host species | No. hosts | No. captures | Larvae† |
Nymphs‡ |
||
---|---|---|---|---|---|---|
N | Mean (SE) | N | Mean (SE) | |||
White-footed mouse (Peromyscus leucopus) | 132 | 283 | 2,548 | 9.0 (0.7) | 414 | 1.5 (0.2) |
Pine vole (Microtus pinetorum) | 23 | 23 | 127 | 5.5 (2.3) | 17 | 0.7 (0.2) |
Eastern chipmunk (Tamias striatus) | 3 | 8 | 106 | 13.3 (7.3) | 145 | 18.1 (13.0) |
Gray squirrel (Sciurus carolinensis) | 14 | 22 | 117 | 5.3 (1.3) | 321 | 14.6 (4.8) |
Raccoon (Procyon lotor) | 39 | 49 | 3,630 | 77.0 (14.5) | 394 | 8.0 (1.1) |
Virginia opossum (Didelphis virginiana) | 7 | 14 | 1,083 | 77.4 (25.2) | 82 | 5.9 (3.3) |
Common shrew (Sorex cinereus) | 1 | 1 | NA | NA | ||
Short-tailed shrew (Blarina brevicauda) | 2 | 2 | NA | NA | ||
Stripped skunk (Mephitis mephitis) | 1 | 1 | NA | NA |
*SE, standard error; NA, not analyzed.
†Kruskal-Wallis test, χ2 = 33.61, degree of freedom (df) = 5; p<0.001.
‡Kruskal-Wallis test, χ2 = 57.76, df = 5; p<0.001.
1Current affiliation, New York Medical College, Valhalla, New York, USA
2Current affiliation, University of Bath, Bath, United Kingdom