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Table 2 Animal-level seroprevalence of Brucella spp. in various livestock species

From: Incidence of Brucella infection in various livestock species raised under the pastoral production system in Isiolo County, Kenya

Variable

Level

Livestock species

Cattle

Sheep

Goats

Camels

n

% Seroprevalence

(95% CI)

P-value

n

% Seroprevalence

(95% CI)

P- value

n

% Seroprevalence

(95% CI)

P-value

n

% Seroprevalence

(95% CI)

P-value

Sex

 

Male

48

6.3 (1.3–17.2)

0.113

13

7.7 (0.2–36.0-)

0.298

27

0.0 (0.0–12.8)

0.019

0

0.0

1

 

Female

250

15.2 (11.0–20.3)

 

105

1.9 (0.2–6.7)

 

79

17.7 (10.0–27.9)

 

10

20.0 (2.5–55.6)

 

Age

 

Young

25

0.0 (0.0–13.7)

0.031

16

0.0 (0.0–20.6)

0.643

12

0.0 (0.0–26.5)

0.031

0

0.0

1

 

Weaners

31

6.5 (0.8–21.4)

 

18

5.6 (0.1–27.3)

 

11

9.1 (0.2–41.3)

 

0

0.0

 
 

Adults

242

16.1 (11.7–21.4)

 

84

2.4 (0.3–8.3)

 

83

15.7 (8.6–25.3)

 

10

20.0 (2.5–55.6)

 

Pregnancy status

 

No

212

12.3 (8.1–17.5)

0.267

86

0.0 (0.0–10.9)

0.562

72

8.3 (3.1–17.3)

0.061

2

50 (1.3–98.7)

1

 

Yes

86

17.4 (10.1–27.1)

 

32

3.5 (0.7–9.9)

 

34

23.5 (10.7–41.2)

 

8

12.5 (0.3–52.7)

 
  1. n number of animals tested; CI lower and upper limits for 95% confidence intervals