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Table 1 Prevalence of intestinal parasites and factors associated with this prevalence in different dog populations. Percentages given for specific parasites refer to percentage of dogs that were found positive for an infection within a category of risk factor

From: Abundance, zoonotic potential and risk factors of intestinal parasitism amongst dog and cat populations: The scenario of Crete, Greece

Dog population Parasite species Prevalence (%) (95% CI) Infection intensity History of diarrhoea
Mediana (Range) With diarrhoea Without diarrhoea
Shelter All 62.9 (57.3–68.6)   46.0 54.0
Giardia 54.3 (48.5–60.2) 4,450 (100–222,800) 51.6 56.7
Cryptosporidium 14.7 (10.6–18.9) 200 (100–1,400) 7.8 20.7
Toxocara spp. 12.2 (8.4–16.1) 79 (1–12,000) 3.9 19.3
T. leonina 6.1 (3.3–8.9) 153 (2–3,330) 0.8 10.7
Hookworms 9.7 (6.3–13.2) 31 (3–588) 3.1 15.3
Capillariidae 0.7 (0.0–1.7) 1.5 (1 & 2) 0.8 0.7
Cystoisospora 7.6 (4.4–10.7) 26 (1–1,800) 7.8 7.3
Household All 23.8 (20.2–27.4)   25.5 74.5
Giardia 12.9 (10.0–15.7) 10,400 (100–75,800) 20.5 10.4
Cryptosporidium 1.9 (0.7–3.1) 300 (100–40,300) 4.5 1.3
Toxocara spp. 5.1 (3.2–7.0) 29 (2–4,284) 6.8 4.6
T. leonina 0.9 (0.1–1.8) 51 (15–223) 0 1.0
Hookworms 5.3 (3.4–7.2) 9 (1–423) 1.5 6.6
Capillariidae 1.9 (0.7–3.1) 4.5 (1–1,246) 2.3 1.8
Cystoisospora 2.5 (1.1–3.8) 7 (1–8,400) 3.8 2.0
Shepherd All 51.4 (39.8–62.9)   0 100
Giardia 4.2 (0.0–8.8) 11,800 (3,000–122,700) 0 4.2
Cryptosporidium 1.4 (0.0–4.1) 1,200 (1,200) 0 1.4
Toxocara spp. 8.3 (1.9–14.7) 118.5 (27–2543) 0 8.3
T. leonina 2.8 (0.0–6.6) 282.5 (109 & 456) 0 2.8
Hookworms 33.3 (22.4–44.2) 19 (1–894) 0 33.3
Capillariidae 4.2 (0.0–8.8) 20 (1–36) 0 4.2
Cystoisospora 8.3 (1.9–14.7) 3.5 (1–41) 0 8.3
Taeniid 6.9 (1.1–12.8) 16 (3–72) 0 6.9
  1. aMedian number of cysts/oocysts/eggs per gram of faeces