Two exposure areas were identified based on environmental sampling data: one area was primarily contaminated with TCE, and the other with PCE.
We selected each target area based on environmental sampling data that identified contaminated soil, groundwater, surface water, or sediment.
In the absence of serial WBCs, individual exposure can only be estimated based on environmental sampling and personal interviews.
Second, ongoing surveillance programs in LBMs based on environmental sampling are more likely than those based on invasive bird testing to be acceptable to traders and stall vendors.
We believe that the conservative model prediction based on environmental sampling data is a result of the stringent inclusion of C. gattii positive data from only established locales, and the more liberal model predictions based on case data are a result of the spatial uncertainty related to using address of residence as a proxy for where C. gattii exposure occurred.
Fig. 3 Cluster analysis (single link) based on environmental data in 12 sampling sites of hot springs in Eastern Amhara Region, Ethiopia, 2013.
Open image in new window Fig. 7 Groundwater quality dendrogram using average linkage from Q-mode HCA a based on environmental parameters and b based on groundwater samples.
In all PCA based on environmental factors, taxonomic composition, and functional composition, samples from three farmland sites (far or near residential area) were clustered together, and all other samples were dispersed, that they varied greatly.
When sampling strategy is based on environmental characteristics, studies may need to consider how best to find a manageable number of sites that are different but representative of the full environmental diversity [ 4].
We designed a sampling strategy for adult anopheline mosquito inventory and habitat characterization, based on environmental stratification.
