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comprehensive centrality resource and server for centralities calculation version: 1.0.0

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DFC - Disease Flow Centrality


Definition

The DFC model takes into account the temporal dynamics of the livestock trade relations and reflects a disease flow process on a dynamic network. The calculation of DFC is based on the idea of traversing a network and counting the number of times each node (holding) is reached or traversed (‘vulnerability measure’), or the number of times that it is at the origin of this process (‘risk measure’ in spreading the disease).
The Disease Flow Centrality measure represents the ideal solution because it takes into account the dynamic nature of the network of the animal movements and not only the position of the node with respect to the entire network (as in the classical betweenness of static networks). These DFC values are highly unstable over time since a node may be in a strategic position for controlling disease flow only within a specific time window, after which it may cease to play any significant role.

Software

References

  • IANNETTI, S., SAVINI, L., PALMA, D., CALISTRI, P., NATALE, F., DI LORENZO, A., CERELLA, A. & GIOVANNINI, A. 2014. An integrated web system to support veterinary activities in Italy for the management of information in epidemic emergencies. Preventive Veterinary Medicine, 113, 407-416. DOI: 10.1016/j.prevetmed.2014.01.015 Publisher web site Endnote RIS file
  • NATALE, F., SAVINI, L., GIOVANNINI, A., CALISTRI, P., CANDELORO, L. & FIORE, G. 2011. Evaluation of risk and vulnerability using a Disease Flow Centrality measure in dynamic cattle trade networks. Preventive Veterinary Medicine, 98, 111-118. DOI: 10.1016/j.prevetmed.2010.11.013 Publisher web site Endnote RIS file


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