Control of rural house infestation by Triatoma infestans in the Bolivian Chaco using a microencapsulated insecticide formulation

Table 1 House infestation by T. infestans before and after the intervention with the microencapsulated formulation

	No of houses		Infested houses		Collected insects		OR (CI 95%)
Months after intervention	Evaluated (infested)	Painted (infested)	ID	PD	ID	PD
0 (BL)	1712 (522)	1626 (502)	307	297	1459	2345
2 (E1)	1947 (52)	1529 (46)	13	39	83	297	0.071 (0.052; 0.096)
16 (E2)	2096 (49)	1572 (32)	24	49	77	195	0.047 (0.033; 0.068)
32 (E3)	1064 (19)	1012 (18)	8	11	30	51	0.039 (0.024; 0.063)

ID and PD: number of evaluated and infested houses in intradomestic and peridomestic structures. BL is the entomological evaluation of houses before the microencapsulated application (baseline); E1, E2 and E3 are entomological evaluations after 2, 12 and 32 months after the microencapsulated application. Odds ratio (OR) and 95% confidence interval (CI95%) contrasts infestation prevalence at BL, with entomological evaluations after the microencapsulated application (E1, E2, E3).

ISSN: 1756-3305