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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