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Volume 14, Number 10—October 2008

Research

Ecologic Factors Associated with West Nile Virus Transmission, Northeastern United States

Heidi E. Brown1, James E. Childs, Maria A. Diuk-Wasser, and Durland FishComments to Author 
Author affiliations: Yale University, New Haven, Connecticut, USA;

Main Article

Figure 3

Incidence of human West Nile virus disease cases in 8 northeastern states, 1999–2006. Deviation ellipses indicate 1 SD of the geographic mean yearly incidence calculated as the incidence weighted average in space for each county. Incidence is attributed to the county centroid. This graph shows the urban concentration along the Eastern Seaboard as well as the outliers in western Pennsylvania (1 case in counties with low populations). The 2005 and 2006 regression of the geographic mean incidence is also depicted.

Figure 3. Incidence of human West Nile virus disease cases in 8 northeastern states, 1999–2006. Deviation ellipses indicate 1 SD of the geographic mean yearly incidence calculated as the incidence weighted average in space for each county. Incidence is attributed to the county centroid. This graph shows the urban concentration along the Eastern Seaboard as well as the outliers in western Pennsylvania (1 case in counties with low populations). The 2005 and 2006 regression of the geographic mean incidence is also depicted.

Main Article

1Current affiliation: University of Oxford, Oxford, UK.

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