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Table 1 Epidemiological information from farms that were affected with ASFV outbreaks between 2015 and 2017 in Tanzania

From: Persistent domestic circulation of African swine fever virus in Tanzania, 2015–2017

Location

Distance (km)a

Region

Outbreak month

Morbidity

Mortality

Herd size

Apparent case fatality (%) rate

No. of pigs sampled

No. of positive pigs

Type of operation

Breed

Age affected

Management system

Mwanza

5

Mwanza

Dec-15

480

480

700

100

200

200

Commercial farm

Cross

All age groups

Intensive system

Manyoni

4

Singida

May-15

80

68

100

85

65

55

Backyard farm

Cross

All age groups

Intensive system

Kigoma

3

Kigoma

May-15

58

40

78

69

40

29

Backyard farm

Cross

All age groups

Intensive system

Bukoba

12

Kagera

Dec-15

90

76

136

84

54

51

Backyard farm

Exotic

All age groups

Semi-intensive system

Magu

3

Mwanza

Jul-16

100

94

130

94

50

50

Backyard farm

Cross

All age groups

Intensive system

Ngara

4

Kagera

Jul-16

50

39

98

78

30

30

Backyard farm

Cross

Adults

Intensive system

Babati

3

Manyara

Aug-16

57

42

87

74

38

38

Backyard farm

Local

All age groups

Intensive system

Mbarali

5

Mbeya

Mar-16

123

118

150

96

112

110

Backyard farm

Cross

All age groups

Intensive system

Tukuyu

2

Mbeya

Feb-16

150

135

160

90

120

70

Commercial farm

Cross, Exotic

All age groups

Intensive system

Uyole

2

Mbeya

Feb-16

65

60

87

92

30

30

Backyard farm

Cross

All age groups

Intensive system

Kalambo

46.7

Rukwa

Mar-17

163

140

195

86

120

110

Backyard farm

Local

All age groups

Free ranging system

Ileje

74.3

Mbeya

Mar-17

35

33

58

94

33

33

Backyard farm

Cross

Adults

Intensive system

Mbozi

8

Mbeya

Mar-17

350

348

370

99

100

87

Commercial farm

Cross

All age groups

Intensive system

Kongwa

16

Dodoma

May-17

167

167

180

100

160

100

Commercial farm

Cross

All age groups

Intensive system

Dodoma

14

Dodoma

May-17

120

120

130

100

110

80

Backyard farm

Cross

All age groups

Intensive system

Mpwapwa

58

Dodoma

May-17

340

320

500

94

200

194

Backyard farm

Cross

All age groups

Intensive system

Gairo

1

Dodoma

Apr-17

140

127

165

91

98

95

Backyard farm

Cross

All age groups

Intensive system

Mbagala

15

Dar es Salaam

Feb-17

230

220

240

96

200

200

Backyard farm

Cross

All age groups

Intensive system

Mazimbu

5

Morogoro

May-17

1210

1210

1220

100

360

360

Commercial farm

Cross

All age groups

Intensive system

Mzumbe

7

Morogoro

May-17

300

290

340

97

100

100

Commercial farm

Cross

All age groups

Intensive system

Morogoro

6

Morogoro

May-17

69

64

76

93

56

38

Backyard farm

Exotic

All age groups

Intensive system

Kibaha

2

Pwani

May-17

234

234

400

100

120

110

Commercial farm

Cross

All age groups

Intensive system

  1. aDistance of the farm where ASF outbreak occurred from the major highway