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. 2011 Aug 10;6(8):e23280. doi: 10.1371/journal.pone.0023280

Figure 4. Suffolk County West Nile Virus (WNV) human risk map based on the final logistic regression model.

Figure 4

WNV risk probabilities range from p = 0 (lowest) to p = 1.0 (highest). High WNV risk areas are defined as WNV human risk probability p>0.5. The geographic locations of acute WNV human cases in 2000–2004 (training dataset to generate the risk map) and 2005–2010 (validation dataset to assess the map accuracy) are shown. “No data” areas were generated due to incomplete census variables coverage in federal holdings (Plum Island, Brookhaven National Lab, parts of Fire Island National Seashore), privately owned islands, and along some sinuous coastlines.