Table 1. Posterior estimates and credible intervals for endemic, single-epidemic and four micro-epidemic models of Trypanosoma cruzi transmission in peri-urban Arequipa.

Parameter	Endemic Model	Single epidemic model	Four micro-epidemic model
	Median [2.5%, 97.5% cri 1]	Median [2.5%, 97.5% cri]	Median [2.5%, 97.5% cri]
Rate of Spread of the Parasite (m/year)	-	29.18 [17.52–44.69]2	17.35 [8.87–32.55]3
Baseline yearly risk of infection	0.0014 [0.0009–0.0020]	0.0032 [0.0018–0.0058]	0.0042 [0.0022–0.0086]
Relative risk per domiciliary insect captured	1.018 [1.004–1.028]	1.014 [1.000–1.024]	1.014[1.000–1.025]
Relative risk in households with animals sleeping inside	1.34 [0.66–2.56]	1.53 [0.76–2.93]	1.42 [0.70–2.72]
Years since the first introduction of the parasite	-	20.31 [12.71–33.25]	19.98 [10.92– 34.65]

¹Credible intervals are the 2.5^th and 97.5^th quantiles of the posterior samples.

²Corresponds to an average of 15.01 [5.07, 34.26] households exposed by a single infected household in a fully-susceptible population.

³Corresponds to an average of 4.950 [1.01, 18.77] households exposed by a single infected household in a fully-susceptible population.