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Table 1 Univariate logistic regression analysis of the prevalence of Orf Virus infection with different putative risk factors

From: Molecular identification and investigations of contagious ecthyma (Orf virus) in small ruminants, North west Ethiopia

Body part lesion N No. Positive Prevalence, % (95% CI) P- value
Mouth 121 24 19.80 (14.71–23.22)  
Nostrils 153 16 10.50 (8.03–12.45) 0.041
Teat and udder 78 7 8.97 (5.98–11.32)  
Lower leg 50 1 2.00 (0.98–3.45)  
Total 400 48 12.00 (11.21–14.87)  
Species
 Goat 200 17 8.5 (7.23–10.11) 0.054
 Sheep 200 31 15.5 (13.43–17.26)  
 Total 400 48 12.00 (11.21–14.87)  
Sex
 Male 190 21 11.05 (9.86–14.36) 0.32
 Female 210 27 12.85 (10.03–15.88)  
 Total 400 48 12.00 (11.21–14.87)  
Body condition
 Poor 155 27 17.4 (14.01–19.23) 0.043
 Medium 130 12 9.20 (7.01–12.87)  
 Good 115 9 7.80 (5.44–9.06)  
 Total 400 48 12.00 (11.21–14.87)  
Age
 <  1 year 47 3 6.4 (4.49–9.67)  
 1–2 year 133 22 16.5 (12.54–19.98) 0.65
 2–3 year 152 14 9.2 (6.31–12.03)  
 >  4 years 68 9 13.2 (12.79–15.02)  
 Total 400 48 12.00 (11.21–14.87)  
Nursing
 Yes 88 15 17.04 (14.01–21.39) 0.047
 No 312 33 10.57 (7.75–11.64)  
 Total 400 48 12.00 (11.21–14.87)  
Treatment and Vaccination
 Treated with anthelmentics 121 11 9.1 (7.01–12.20) 0.021
 Not treated with anthelmentics 49 7 14.3 (11.10–17.09)  
 Treated with antibiotics 112 9 8.0 (6.93–10.05)  
 Not treated with antibiotics 35 6 17.14 (13.67–21.39)  
 Any vaccination history 46 7 15.21 (12.32–17.66)  
 No any vaccination history 37 8 21.62 (17.31–24.89)  
 Total 400 48 12.00 (11.21–14.87)  
Management System
 Extensive 106 15 14.15 (11.05–17.08) 0.042
 Semi extensive 94 11 11.70 (7.88–13.09)  
 Mixed 81 9 11.11 (7.64–13.04)  
 Free housing 56 10 18.18 (15.03–21.80)  
 Protected housing 63 3 4.76 (2.44–7.42)  
 Total 400 48 12.00 (11.21–14.87)  
Study Area
 Gondar Zuria 160 21 13.12 (10.19–15.32) 0.65
 Ambagiorgis 135 14 10.37 (7.83–13.09)  
 Addis Zemen 105 13 12.38 (8.21–14.39)  
 Total 400 48 12.00 (11.21–14.87)  
Type of Treatment   No. Responding   
 Moist dressing   32 15.2 (12.1–19.64) 0.032
 Surgical removal   57 27.1 (21.3–31.24)  
 Culling   26 12.4 (9.02–15.62)  
 Antibiotics   95 45.2 (39.56–45.42)  
 Total   210   
Outbreak history
 Yes   280 70 (64.10–74.50) 0.012
 No   120 30 (27.21–34.52)  
 Total   400