Bovine Tuberculosis in Cattle in the Highlands of Cameroon: Seroprevalence Estimates and Rates of Tuberculin Skin Test Reactors at Modified Cut-Offs
Table 5
Prevalence of SICCT-BT reactors in 2,853 cattle tested in the year 2009 at modified cutoff points in the highlands of Cameroon.
Variable
Animals tested
SICCT-BT reactors % (95% CI)
≥4 mm
≥3 mm
≥2 mm
All animals
2,853
7.48 (6.51–8.44)
11.52 (10.35–12.69)
12.92 (11.69–11.15)
Agroecological location
ADP
727
4.10b (2.66–5.54)
5.32b (3.69–6.95)
7.07a (5.21–8.93)
WHC
2,126
8.63a (6.51–8.44)
13.64a (12.18–15.10)
14.92b (13.40–16.43)
Breed
Upgraded/Exotic
368
12.49a (9.12–15.87)
19.39a (15.35–23.43)
21.05a (16.88–25.21)
Guadali
1,317
6.01b (4.73–7.30)
10.32b (8.68–11.96)
12.32b (10.54–14.09)
Namchi
33
3.03
3.03
3.03
Red Bororo
487
11.62a (8.77–14.46)
15.64a (12.42–18.87)
16.52a (13.22–19.82)
White Fulani
648
4.60b (2.99–6.22)
6.72b (4.80–8.65)
7.23b (5.24–9.23)
Sex and Age
Female
2,212
7.73a (6.62–8.85)
12.30a (10.93–13.67)
13.92a (12.48–15.36)
Male
641
6.60a (4.67–8.52)
8.83b (6.63–11.02)
9.45b (7.19–11.72)
Age ≤ 4 years
1,481
5.82b (4.63–7.01)
8.40c (6.99–9.82)
9.72c (8.21–11.22)
Age > 4 years
1,372
9.27c (7.73–10.80)
14.88d (13.00–16.77)
16.37d (14.41–18.33)
Management system
Extensive
1510
6.77a (5.50–8.03)
9.32a (7.85–10.78)
9.93a (8.42–11.44)
Intensive
138
6.38a (2.03–10.46)
17.62b (11.27–23.98)
19.81b (13.16–26.46)
Semi-intensive
1205
8.49a (6.92–10.07)
13.58b (11.64–15.51)
15.87b (13.81–17.93)
Beef herds
2,357
8.16b (7.05–9.26)
10.78c (9.53–12.03)
11.71c (10.41–13.00)
Dairy herds
496
4.24c (2.47–6.02)
15.03d (11.88–18.17)
18.67d (15.24–22.10)
Herd size (No animals per herd)
≤40 animals
1,325
9.19a (7.64–10.75)
11.98a (10.23–13.72)
13.51a (11.67–15.35)
>40 animals
1,528
5.99b (4.80–7.18)
11.12a (9.55–12.70)
12.40a (10.75–14.06)
a, b, c, dLabel in a category with different letters in a column are significantly different (). SICCT-BT: Single Intradermal Comparative Cervical Tuberculin skin test for the diagnosis of bovine tuberculosis.
