Fig. 8.
Spatial distribution of V. cholerae concentration in the study area. Map indicating the location of the sampled ponds and the relative concentration of V. cholerae serogroups (a) O1 and (b) O139. The icddr,b hospital, the regional market place and the outline of the river enbankment are highlighted in white. The heat map in the lower part indicates the concentration range. The satellite image is gathered from the LandSat NASA mission; the dataset is available at http://landsatlook.usgs.gov/.