Figure 1From: Conceptualising the technical relationship of animal disease surveillance to intervention and mitigation as a basis for economic analysis Schematic illustration of surveillance objectives in relation to a three stage mitigation system. A: (re-)emerging or exotic epidemic pathogen that is not controlled by response measures, B: (re-)emerging or exotic epidemic pathogen that is controlled by response measures, C: continuous free status, D: endemic disease, dotted line: true value unknown.Back to article page