Table 1.
Comparison between common sampling methods.
Fig 1.
Example of household selection using random points and 10 m-radius buffer area.
The yellow dots exemplify the selected households. The size of the dots has been increased for clarity. Sample image from http://openaerialmap.org with similar viewpoint to the ones used in the methodology (licenced CC BY 4.0).
Fig 2.
Percentage of household selection success in clusters, via satellite imagery in Cameroon.
Results of correctly and incorrectly selected household using high-resolution satellite background images in QGIS. The thick lines indicate the median, the diamonds display the mean, the box delimits the interquartile range (IQR) and the whiskers give the minimum and maximum values inside the 1.5 IQR.
Table 2.
Structural modules for developing snakebite multi-cluster random surveys.