Volume 21, Number 10—October 2015
Dispatch
Heartland Virus Neutralizing Antibodies in Vertebrate Wildlife, United States, 2009–2014
Figure 2

Figure 2. Geographic groupings of confirmed seropositive animals for Heartland virus neutralizing antibodies, central and eastern United States, 2009–2014. Twenty groups were identified in 13 states. The geographic locations of the groups were subjectively approximated by the counties where seropositive animals were collected (blue circles). Red indicates states with seropositive animals; gray indicates states in which no seropositive animals were detected. Because of the sampling design, the data are qualitative.
1Current affiliation: University of California, Davis, California, USA.