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Table 2 Risk factors for medium-scale farms for ASF reports between first and second sampling (n = 49), 2010–2011

From: A longitudinal survey of African swine fever in Uganda reveals high apparent disease incidence rates in domestic pigs, but absence of detectable persistent virus infections in blood and serum

 

aASF between

 

Nob (%)

Yesb (%)

NAb (%)

Total (n)

Awareness c

Not aware about ASF

50

0

50

2

 

Aware about ASF

85

4

11

46

 

NA d

100

0

0

1

Biosecurity measures e

At least one

83

4

13

24

 

None

85

5

10

20

 

NA

80

0

20

5

Borrow boar

No

100

0

0

17

 

Yes

78

4

19

27

 

NA

60

20

20

5

Breed

Local

71

14

14

7

 

Improved

85

2

12

41

 

NA

100

0

0

1

Duration of enterprises

     
 

Less or equal to 10 years

85

3

12

34

 

Greater than 10 years

75

8

17

12

 

NA

100

0

0

3

Ectoparasites control

No

75

0

25

4

 

Yes

86

2

12

43

 

NA

50

50

0

2

Feeding swill

No

88

6

6

17

 

Yes

81

3

16

32

 

NA

0

0

100

1

Labour

Family

76

6

18

34

 

Hired

100

0

0

9

 

NA

100

0

0

6

Pets present on farm

No

84

4

12

25

 

Yes

86

0

14

21

 

NA

67

33

0

3

Piglets housing

Piglets housing present

80

5

15

40

 

Piglets not housed

100

0

0

8

 

NA

100

0

0

1

Pig housing

Pig housing present

82

5

14

44

 

No pig housing

100

0

0

4

 

NA

100

0

0

1

Replacement stock

Own farm

87

0

13

15

 

From neighbouring farms

82

6

12

33

 

NA

100

0

0

1

Wild pigs (bush pigs) contact

No

82

6

12

33

 

Yes

100

0

0

1

 

NA

87

0

13

15

  1. a ASF between- Reports of ASF on farms during the one year between the first and second sampling visits. This is the dependent variable and the row variables in the table are the independent variables
  2. b The numbers in each of the cells under columns No, Yes and NA are relative proportions (percentages) of the total number of pigs (column Total, n) in each of the table rows
  3. c Awareness as a variable encompasses those farms where farmers expressed having knowledge on the symptoms, spread, control and prevention measures for ASF
  4. d Missing values
  5. e Biosecurity measures considered were presence of a fence to the farm, controlled entrance to the pig pens (presence of gate/door) and presence of foot baths