Volume 26, Number 2—February 2020
Research
Cost-effectiveness of Screening Program for Chronic Q Fever, the Netherlands
Figure 2

Figure 2. Geographic categorization of high, middle, and low Q fever incidence in the Netherlands using (A) 4-digit postal code areas and (B) 3-digit postal code areas. Incidence level was based on acute Q fever notifications and the proximity of farms with Q fever during the epidemic period (2007–2010).