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Table 1 Prevalence of parasitic infection detected in the stool specimens from Nakhon Ratchasima and Chaiyaphum provinces by Kato-Katz thick smear and PECT. (OV, O. viverrini; HW, Hookworm; TN, Taenia spp.; TT, T. trichiura; ES, Echinostoma spp.)

From: Current prevalence and geographic distribution of helminth infections in the parasitic endemic areas of rural Northeastern Thailand

District/Province

Subdistrict

No. of collected samples

No. of positive samples

No. of negative samples

Prevalence (%)

OV

HW

TN

TT

ES

OV+TN

Dan Khun Thot/ Nakhon Ratchasima

Ban Praeng

98

2

0

0

0

0

0

96

OV = 1.68

HW = 0.29

TN = 0.22

TT = 0.15

ES = 0.00

Nong Krat

75

1

0

0

0

0

0

74

Dan Nok

100

3

0

1

0

0

0

96

Nong Sai

95

1

2

0

0

0

0

92

Nong Bua Lakhon

67

2

1

0

0

0

0

64

Hin Dat

95

1

0

1

0

0

0

93

Dan Nai

80

3

0

1

0

0

0

76

Kut Phiman

95

3

0

0

1

0

0

91

Ban Kao

95

6

0

0

0

0

0

89

Dan Khun Thot

92

1

1

0

0

0

0

90

Takhian

87

0

0

0

0

0

0

87

Sa Chorakhe

100

0

0

0

0

0

0

100

Nong Bua Takiat

100

0

0

0

0

0

0

100

Huai Bong

97

0

0

0

0

0

0

97

Non Muaeng Patthana

92

0

0

0

1

0

0

91

Total

1368

23

4

3

2

0

0

1336

Kham Thale So/ Nakhon Ratchasima

Pong Daeng

107

0

0

2

0

0

0

105

OV = 0.24

HW = 0.24

TN = 0.98

TT = 0.00

ES = 0.00

Bueng O

111

1

1

0

0

0

0

110

Kham Thale So

102

0

0

1

0

0

0

101

Phun Dung

88

0

0

1

0

0

0

87

Total

409

1

1

4

0

0

0

403

Sung Noen/ Nakhon Ratchasima

Sung Noen

77

1

1

0

0

0

0

75

OV = 0.38

HW = 0.66

TN = 0.09

TT = 0.09

ES = 0.00

Sema

103

0

1

0

1

0

0

101

Khorat

107

0

0

0

0

0

0

107

Bung Khilek

103

1

0

0

0

0

0

102

Non Kha

107

0

0

0

0

0

0

107

Khong Yang

99

0

0

0

0

0

0

99

Makluea Kao

95

1

1

1

0

0

0

92

Makluea Mai

87

0

2

0

0

0

0

85

Na Klang

101

1

0

0

0

0

0

100

Nong Takai

99

0

0

0

0

0

0

99

Kud Chik

87

0

2

0

0

0

0

85

Total

1065

4

7

1

1

0

0

1052

Sikhio/ Nakhon Ratchasima

Sikhio

66

1

0

0

0

0

0

65

OV = 1.09

HW = 0.49

TN = 0.49

TT = 0.20

ES = 0.10

Ban Han

58

2

0

0

0

0

0

56

Kritsana

91

1

0

0

0

0

0

90

Lat Bua Khao

116

0

0

1

1

0

1

113

Nong Ya Khao

90

0

1

0

1

0

0

88

Kut Noi

94

1

1

1

0

0

0

91

Nong Nam Sai

78

0

0

0

0

1

0

77

Wang Rong Yai

98

1

1

0

0

0

0

96

Mittraphap

122

2

2

2

0

0

0

116

Don Mueang

100

0

0

0

0

0

0

100

Nong Bua Noi

99

2

0

0

0

0

0

97

Total

1012

10

5

4

2

1

1

989

Mueang/ Chaiyaphum

Phon Thonga

432

53

0

1

0

0

1

377

OV = 7.15

HW = 0.07

TN = 0.49

TT = 0.08

ES = 0.00

Huai Tona

452

117

0

0

0

0

0

335

Na Faia

444

57

0

3

0

0

0

384

Lat Yaia

420

94

3

5

0

0

0

318

Na Siaoa

412

53

1

9

3

0

1

344

Ban Khai

420

17

0

0

1

0

0

402

Kut tum

415

10

0

0

1

0

0

404

Chi Long

372

15

1

2

0

0

0

354

Ban Lao

380

14

0

1

1

0

0

364

Nong Na Saeng

404

15

0

2

0

0

0

387

Nong Phai

400

11

0

4

0

0

0

385

Tha Hin Ngom

401

13

0

2

0

0

0

386

Huai Bong

302

12

0

1

0

0

0

289

Non Samran

320

5

0

1

0

0

0

314

Khok Sung

365

10

0

2

0

0

0

353

Bung Khla

412

12

0

0

0

0

0

400

Sap Si Thong

389

11

0

2

0

0

0

375

Nai Mueang

284

2

0

0

0

0

0

282

Rop Mueang

320

3

0

0

0

0

0

317

Total

7344

524

5

35

6

0

2

6770

Overall (n) (%)

 

11196

562 (5.02)

22 (0.20)

47 (0.42)

11 (0.10)

1 (0.01)

3 (0.03)

10550 (94.23)

  1. aTop 5 subdistricts with the highest prevalence of O. viverrini infection: Huai Ton; 25.88%, Lat Yai; 22.38%, Na Siao; 12.86%, Na Fai; 12.84%, and Phon Thong; 12.27%, respectively