. 2011 Mar 4;84(3):489–496. doi: 10.4269/ajtmh.2011.10-0654

Table 4.

Minimum infection rates and maximum likelihood estimates for infection rates of DENV for Ae. aegypti females collected from schools in Mérida that were included for all three sampling periods during 2008 and 2009

Time period	No. of females examined	No. of pools examined	No. of DENV-positive pools (%)	DENV infection rate per 100 females
Time period	No. of females examined	No. of pools examined	No. of DENV-positive pools (%)	MIR^*	MLE (95% CI)^†
October 2008	206	43	9 (20.9)	4.4	4.7 (2.5–8.3)
December 2008	51	23	1 (4.3)	2.0	1.9 (0.1–8.8)
November and December 2009	115	36	7 (19.4)	6.1	6.1 (2.9–11.1)
Total for 2008 and 2009	372	102	17 (16.7)	4.6	4.8 (3.0–7.3)

Data were based on 18 schools that were examined for all three time periods during 2008–2009.

MIR = minimum infection rate per 100 females based on the assumption of a single infected female per infected pool.⁶⁴

^†

MLE = Bias-corrected maximum likelihood estimate for infection rate per 100 females calculated with the Excel Add-In PooledInfRate, version 3.0⁶⁴,⁶⁵; 95% CI = 95% confidence interval.