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Table 1 Infestation with Triatoma infestans and sensitivity of sticky traps (ST), householdersʼ bug notifications (HN), timed-manual collections (TMC) and ST combined with HN

From: Improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine Chaco

LevelDetection methodPercentage of infestation (No. positive/No. evaluated)Sensitivity (%) according to houses or sites positive by
  ST or TMC (No. positive)cST, TMC or HN (No. positive)d
Housea
 ST39 (21/54)78 (21/27)68 (19/28)
 HNb35 (17/49)54 (13/24)61 (17/28)
 TMC35 (19/54)70 (19/27)61 (17/28)
 ST-HN50 (27/54)88 (21/24)89 (25/28)
 All methods combined57 (31/54)100 (27/27)100 (28/28)
Domiciles
 ST22 (11/51)79 (11/14)61 (11/18)
 HNb32 (15/47)77 (10/13)83 (15/18)
 TMC16 (8/51)57 (8/14)39 (7/18)
 ST-HN33 (17/51)92 (12/13)94 (17/18)
 All methods combined37 (19/51)100 (14/14)100 (18/18)
Kitchens and storerooms
 ST21 (11/52)65 (11/17)64 (9/14)
 HNb6 (3/47)21 (3/14)21 (3/14)
 TMC27 (14/52)82 (14/17)86 (12/14)
 ST-HN21 (11/52)64 (9/14)64 (9/14)
 All methods combined33 (17/52)100 (17/17)100 (14/14)
  1. aHouse level only encompasses domiciles, storerooms and kitchens
  2. bHouseholders provided no information on triatomine presence in five houses (including four domiciles and five kitchens and storerooms)
  3. cUsing Definition 1, the denominator only included houses (or sites) classified as infested because of the finding of at least one live triatomine as determined by ST or TMC
  4. dUsing Definition 2, the denominator included the total number of houses (or sites) that were positive as determined by at least one of the three methods used (ST, TMC and HN)