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Table 1 Extent of excluded and surveyed areas in the 20 APOC countries

From: The geographic distribution of onchocerciasis in the 20 participating countries of the African Programme for Onchocerciasis Control: (2) pre-control endemicity levels and estimated number infected

Country

Country surface (1000 km2)

Excluded area

Surveyed area

Non-surveyed area

1000 km2

%

1000 km2

%

1000 km2

%

Angola

1,247

84

6.7

1,015

81.4

148

11.9

Burundi

28

4

13.0

24

87.0

0

0.0

Cameroon

475

25

5.2

430

90.5

21

4.3

CAR

623

129

20.6

448

71.9

46

7.4

Chad

1, 284

1, 027

80.0

257

20.0

0

0.0

Congo

342

59

17.1

271

79.3

12

3.5

DRC

2,345

183

7.8

2,053

87.6

109

4.6

Eq Guinea

28

4

15.2

23

80.4

0

0.0

Ethiopia

1,104

583

52.8

446

40.4

75

6.8

Gabon

268

19

7.3

191

71.5

57

21.2

Kenya

584

505

86.3

57

9.8

23

3.9

Liberia

96

1

0.8

96

99.2

0

0.0

Malawi

118

39

33.3

77

64.9

2

1.9

Mozambique

799

60

7.5

549

68.7

190

23.8

Nigeria

924

42

4.6

858

92.9

0

0.0

Rwanda

25

5

21.3

20

78.0

0

0.0

South Sudan

644

68

10.6

535

83.0

41

6.4

Sudan

1,861

1,516

81.4

346

18.6

0

0.0

Tanzania

947

380

40.1

393

41.5

174

18.4

Uganda

242

62

25.5

180

74.4

0

0.0

Total

13,986

4, 793

34.3

8,270

59.1

898

6.4