The sample population.

<p>The sample population.</p

Prevalence of malaria by blood slide microscopy

<p>CI, confidence interval; Pf, <i>Plasmodium falciparum</i>; Pv, <i>Plasmodium vivax</i></p>*<p>Total parasite prevalence do not equal the sum of the species prevalence in some rows due to rounding</p

Map of Amhara Region of Ethiopia showing the survey sites.

<p>Map of Amhara Region of Ethiopia showing the survey sites.</p

Key trachoma prevalence indicators: trachomatous inflammation–follicular (TF) and trachomatous trichiasis (TT)

<p>CI, confidence interval</p

Characteristics of study participants and net usage

<p>LLIN, Long lasting insecticidal net</p

The WHO simplified grading scheme for assessment of trachoma.

<p>Reproduced from Thylefors, 1987 <a href="http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0000197#pntd.0000197-Thylefors1" target="_blank">[18]</a>.</p

Characteristics of study households

*<p>Bureau of Finance and Economic Development for the year 2006/2007</p><p>HH, household; LLIN, Long lasting insecticidal net</p