Volume 30, Number 10—October 2024
Research
Rapid Increase in Seroprevalence of Borrelia burgdorferi Antibodies among Dogs, Northwestern North Carolina, USA, 2017–20211
, Katherine Tyrlik-Olk, Hilary Sandborn, Dana A. Giandomenico, Alexis M. Barbarin, Carl Williams, Paul L. Delamater, Barbara Qurollo, Stephanie van der Westhuizen, and Ross M. Boyce
Table 4
Associations between environmental characteristics and canine Borrelia burgdorferi seroprevalence across various household buffer regions in Watauga County, North Carolina, USA, 2017–2021*
| Characteristics | Buffer regions, 2017 |
Buffer regions, 2021 |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Household† | 0.5-mile radius | 1-mile radius | 3-mile radius | Household† | 0.5-mile radius | 1-mile radius | 3-mile radius | ||
| Elevation |
−0.03 (0.03) |
0.07 (0.03)‡ |
0.06 (0.03)‡ |
0.06 (0.03)‡ |
0.00 (0.03) |
0.01 (0.03) |
0.02 (0.03) |
0.00 (0.03) |
|
| Slope |
0.00 (0.00) |
−0.06 (0.03)‡ |
−0.06 (0.03)‡ |
−0.08 (0.03)§ |
0.01 (0.00)‡ |
−0.00 (0.03) |
0.02 (0.03) |
−0.02 (0.03) |
|
| Aspect |
−0.01 (0.06) |
−0.03 (0.03) |
0.04 (0.03) |
0.10 (0.03)¶ |
−0.02 (0.05) |
−0.03 (0.03) |
−0.01 (0.03) |
−0.01 (0.03) |
|
| NDVI |
0.04 (0.03) |
−0.02 (0.03) |
−0.03 (0.03) |
−0.04 (0.03) |
0.03 (0.03) |
0.01 (0.03) |
0.01 (0.03) |
−0.00 (0.03) |
|
| Distance to green space |
−0.04 (0.03) |
−0.04 (0.03) |
−0.04 (0.03) |
−0.04 (0.03) |
0.01 (0.03) |
0.01 (0.03) |
0.01 (0.03) |
0.01 (0.03) |
|
| Forest land cover density |
−0.03 (0.03) |
−0.03 (0.03) |
−0.07 (0.03)‡ |
−0.08 (0.03)§ |
0.01 (0.03) |
0.03 (0.03) |
0.01 (0.03) |
−0.05 (0.03) |
|
| Urban land cover density |
0.01 (0.03) |
0.01 (0.03) |
0.05 (0.03) |
0.05 (0.03) |
−0.02 (0.03) |
−0.04 (0.03) |
−0.02 (0.03) |
0.02 (0.03) |
|
| Agriculture land cover density | 0.04 (0.03) | 0.03 (0.03) | 0.01 (0.03) | 0.05 (0.03) | 0.01 (0.03) | 0.05 (0.03)‡ | 0.04 (0.03) | 0.05 (0.03) | |
*Values are regression coefficients (+SE). Bivariate ordinary least squares regression was performed to determine associations; coefficients were standardized, enabling magnitude comparisons of coefficients across models by using the household level as the referent. NDVI, normalized difference vegetation index. †Household represents a buffer region radius of 0 miles. ‡p<0.05. §p<0.01. ¶p<0.001.
1Preliminary results from this study were presented at the Virginia Mosquito Control Association Annual Conference; February 14–15, 2023; Virginia Beach, Virginia, USA; and the North Carolina Mosquito and Vector Control Association Annual Meeting; November 15–17, 2023; Carolina Beach, North Carolina, USA.