Fig. 1From: Associations between biosecurity and outbreaks of canine distemper on Danish mink farms in 2012–2013Geographical location of the 61 case and 54 control farms. Location of the farms included in the biosecurity survey. Red circle case farms (Farms diagnosed with CDV between July 2012 and February 2013). Green circle control farms (farms not diagnosed with CDV in 2012 or 2013)Back to article page