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Table 1 Distribution of house infestation and abundance of Triatoma infestans according to type of environment, Avia Terai, 2015–2016

From: Urbanisation, risk stratification and house infestation with a major vector of Chagas disease in an endemic municipality of the Argentine Chaco

Environment

No. of dwellings registered

No. of dwellings not inspected

% dwellings infested by TMS (No. inspected)

Projected infestation (No. of infested dwellings)

Median bug abundance (IQR)

Closed/refused

Low-risk

Low-risk housesa

High-risk housesa

Rural

308

16/16

0

0.0 (23) 

46.3(253)

42.4 (131)

11 (5–23)

Peri-urban

       

Established

307

44/10

43

0.0 (61)

38.3 (149)

22.5 (69)

7 (3–18)

Recent urbanisations

268

102/1

95

0.0 (45)

0.0 (25) 

0.0 (0)

Urban

1413

346/17

634

0.0 (145)

17.3 (271)

4.5 (63)

8 (2–16)

Total

2296

508/44

772

0.0 (274)

31.7 (698)

12.7 (291)b

10 (4–19)

  1. aHigh-risk houses: those where householders notified the presence of T. infestans or the existence of peridomestic structures. Low-risk houses did not meet these criteria
  2. bUnweighted total