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Table 1 Trichinella species identified in raccoon dogs (Nyctereutes procyonoides) and red foxes (Vulpes vulpes) in 2011–2012 in Estonia

From: Trichinella spp. biomass has increased in raccoon dogs (Nyctereutes procyonoides) and red foxes (Vulpes vulpes) in Estonia

Trichinella species Raccoon dog (n = 113) Red fox (n = 87)
Positive (n) Prevalence (95% CI)a (%) % of Trichinella-positive (95% CI) Range of lpg Mean (median) lpg Positive (n) Prevalence (95% CI)a (%) % of Trichinella-positive (95% CI) Range of lpg Mean (median) lpg
T. nativa only 23 20.4 (13.7–29.0) 35.4 (24.5–47.5) 0.5–631.6 158.4 (135.0) 19 21.8 (14.1–31.4) 31.7 (20.9–44.2) 0.1–636.8 82.4 (13.8)
T. britovi only 15 13.3 (7.9–20.5) 23.1(14.1–34.5) 0.6–486.0 123.5 (58.8) 23 26.4 (18.0–36.4) 38.3 (26.7–51.1) 0.1–409.5 44.7 (10.5)
T. nativa and T. britovi 13 11.5 (6.6–18.4) 20.0 (11.6–31.8) 26.2–800.0 209.2 (98.0) 8 9.2 (4.4–16.7) 13.3 (6.4–23.8) 2.3–28.6 9.1 (7.1)
T. nativa, totalb 36 31.9 (23.8–40.9) 55.4 (43.2–67.1) 0.5–800.0 176.7 (130.0) 27 31.0 (22.0–41.3) 45.0 (32.8–57.7) 0.1–636.8 60.7 (8.4)
T. britovi, totalb 28 24.8 (17.5–33.4) 43.1 (31.5–55.3) 0.6–800.0 163.3 (83.2) 31 35.6 (26.1–46.1) 51.7 (39.1–64.1) 0.1–409.5 8.2 (35.5)
Species-level result 51 45.1 (36.1–54.4) 78.5 (67.3–87.2) 0.5–800.0 161.1 (101.4) 50 57.5 (46.9–67.5) 83.3 (72.3–91.2) 0.1–636.8 53.3 (9.4)
No species-level result 14 12.4 (7.2–19.5) 21.5 (12.8–32.8) 0.1–576.0 161.1 (43.6) 10 11.5 (6.0–19.5) 16.7 (8.8–27.7) 0.1–142.9 21.4 (2.4)
Total 65 57.5 (48.3–66.4) 100 (95.5–100) 0.1–800.0 161.1 (98.0) 60 69.0 (58.7–78.0) 100 (95.1–100) 0.1–636.8 48.0 (8.2)
  1. Abbreviation: lpg, larvae per gram of muscle tissue
  2. a95% confidence interval, Mid-P exact
  3. bWith this particular Trichinella species, either as the only species or in mixed infection