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Table 2 Post-mortem worm counts and worm recovery (%) in red foxes (juveniles and adults) infected with 50 or 200 infective third-stage larvae of Angiostrongylus vasorum, including uninfected controls. Worm isolation comprised three subsequent procedures (reverse perfusion, dissection and baermanization of the lungs). Statistical analysis (ANOVA) included infected groups only

From: The effect of host age and inoculation dose on infection dynamics of Angiostrongylus vasorum in red foxes (Vulpes vulpes)

Group n Contribution to worm count (% of total) Mean worm count (95% CI) % female worms Worm recovery % (range)
   Perfusion Dissection Baermann    
Juv50 7 57 32 11 30.3 (26.4–34.2) 50 61 (52–72)
Juv200 7 40 49 11 69.3 (46.3–92.3) 47 35 (21–50)
Ad50 7 49 36 15 19.7 (7.3–32.1) 50 39 (18–98)
Ad200 7 70 20 10 16.3 (3.8–28.7) 59 8 (1–21)
JuvC 3 0
AdC 3 0
  1. Abbreviation: CI confidence interval
  2. Statistical analysis on worm counts (r 2 = 0.68): Age: F (1,24) = 28.39, P < 0.0001; Dose: F (1,24) = 8.89, P =0.0065; Age*dose: F (1,24) = 12.64, P = 0.0016