Figure 6

Conceptual model for the spread and temporal development of BoHV-1 seroconversions in an unvaccinated dairy herd over the course of 10 years. A successful reactivation event occurred 5 years after initial virus introduction. In each of the plots, the black line represents apparent seroprevalence of a theoretical herd whereas pink represents seroconversions attributable to the initial outbreak and blue to the subsequent reactivation event. A Age-dependent seroprevalence profile half a year after initial virus introduction; B seroprevalence profile 4.5 years after virus introduction; C seroprevalence profile 5.5 years after virus introduction i.e. half year after reactivation event. D Seroprevalence profile 10 years after initial virus introduction and 5 years after the reactivation event.