Figure 1.
Map of Greece showing WNV laboratory-confirmed human cases and seropositive resident wild birds, 2010–2012.
Map of Greece showing the distribution of WNV laboratory-confirmed human cases and seropositive resident wild bird samples for the 2010–2012 period. Red, yellow and green dots indicate human cases reported in 2010, 2011 and 2012 respectively. Black dots indicate seropositive resident wild birds detected during the same period. Text boxes refer to available avian samples (resident and migratory) per each region.
Table 1.
Available avian samples: species, migratory status and number of samples per region.
Table 2.
Environmental variables used in the analysis.
Table 3.
Descriptive statistics of positive human cases 2010–2011.
Figure 2.
Clusters of human cases of seropositive wild birds and reported human cases of 2010–2011.
Clusters of WNV reported human cases of 2010–2011 and seropositive wild birds, according to attributes of altitude and distance from water. Mean values of the two variables are presented under each cluster.
Figure 3.
Box-plots of range and altitude.
Box-plots displaying range of altitude (left) and distance from water (right) in the three clusters of humans 2011 WNV positive cases and seropositive wild birds.
Figure 4.
Map of Greece showing potential geographic distribution of WNV.
Map of Greece showing potential geographic distribution of WNV, predicted by GIS and MD based on the attributes of the major clusters of reported human cases of 2011 and seropositive wild birds (low altitude, small distance from water). Black dots indicate reported human cases in 2012. Black circles indicate suggested high-risk areas for WNV further dispersion in following years.