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Table 1 Impact of replacement of lids on mosquito breeding

From: The impact of mosquito proof lids of underground tanks “tanka” on the breeding of Anopheles stephensi in a village in western Rajasthan, India

Pre-Intervention Assessment (May/2018)

Intervention Phasea (May/2018)

Post-intervention Assessment (June/2019)

Follow-up survey (May/2019)

Intervention village

Non-Intervention (control village)

Intervention village

Intervention village

Non-Intervention village

Intervention village

Non-Intervention village

Number of tankas checked

No. positive with larvae (% positivity)

Number of tankas checked

No. with larval breeding (% positivity)

Lid Replaced

Replacement (%)

Number checked

Positive (% positivity)

Number checked

Positive (% positivity)

Number checked

Positive (% positivity)

Number checked

Positive (% positivity)

143

28 (19.6)

37

8 (21.6)

129

90.2

200

0 (%)

31

2 (6.5)

200

4 (2%)

27

9 (33.3)

7

2 (28.6)

0

0 (0.0)

5

71.4

0

0

0

0

4

3 (75.0)

0

0 (0.0)

4

100.0

0

0

0

0

55

6 (10.9)

19

2 (10.5)

14

25.5

16

1 (6.3)

12

1 (8.3)

48

16 (33.3)

13

8 (61.5)

48

100.0

10

2 (20)

7

4 (57.1)

5

3 (60.0)

1

1 (100.0)

0

0.0

5

1 (20)

2

2 (100)

262

58 (22.1)

70

19 (27.1)

200

76.3

200

0 (0%)

62

6 (9.7)

200

4 (2%)

48

16 (33.3)

  1. aNo replacement of lids in non-intervention village
  2. bFollow-up was done only for tankas with replaced lids in Ajasar village