Table 1.
Prevalence of T. gondii in WTD (O. virginianus) collected across the USA from 2012 to 2019
| Yeara | Samples received | Male | Female | Juvenile | Sub-adult | Adult | MAT positive [%; (95% CI)] | Samples bioassayed | T. gondii isolates |
|---|---|---|---|---|---|---|---|---|---|
| 2012 | 241 | 121 | 119 | 97 | 0 | 143 | 21.2 (16.5–26.8) | 40 | 12 |
| 2013 | 602 | 217 | 382 | 131 | 0 | 468 | 43.2 (39.3–47.2) | 110 | 21 |
| 2015 | 12 | 4 | 8 | 1 | 0 | 11 | 50.0 (25.4–74.6) | 6 | 0 |
| 2016 | 2 | 2 | 0 | 0 | 0 | 2 | 0 (0–65.8) | 0 | 0 |
| 2017 | 48 | 14 | 34 | 7 | 3 | 38 | 22.9 (13.3–36.5) | 11 | 3 |
| 2018 | 4 | 2 | 2 | 1 | 0 | 3 | 25.0 (4.6–69.9) | 0 | 0 |
| 2019 | 5 | 2 | 3 | 2 | 0 | 3 | 0 (0.0–43.5) | 0 | 0 |
| Total (% positive) | 914 | 362 (29.8) | 548 (40.0) | 239 (19.2) | 3 (0.0) | 668b (42.1) | 36.0 (33.0–39.2) | 167 | 36 |
a
No samples received in 2014.
b
Age and sex not recorded for four WTD.