Table 1.
Serological prevalence of T. gondii in feral swine collected across the USA from 2012–2017
| Year | Samples received | Male | Female | Juvenile | Sub-adult | Adult | MAT positive (%; 95% CI) | Samples bioassayed | T. gondii isolates |
|---|---|---|---|---|---|---|---|---|---|
| 2012 | 235 | 102 | 133 | 23 | 51 | 161 | 27.6 (22.3–33.7) | 46 | 15 |
| 2013 | 848 | 407 | 439 | 44 | 170 | 634 | 28.5 (25.6–31.7) | 97 | 29 |
| 2014 | 79 | 48 | 31 | 2 | 16 | 61 | 26.6 (18.1–37.2) | 10 | 7 |
| 2015 | 132 | 65 | 66 | 27 | 31 | 72 | 23.5 (17.1–31.4) | 27 | 9 |
| 2016 | 162 | 85 | 77 | 30 | 37 | 95 | 23.5 (17.6–30.1) | 34 | 12 |
| 2017 | 61 | 27 | 34 | 3 | 13 | 45 | 39.3 (28.1–51.9) | 18 | 6 |
| Total | 1517 | 734 | 780 | 129 | 318 | 1068a | 27.7 (27.4–32.1) | 232 | 78 |
a
Age not recorded for two swine. Sex not recorded for three swine.