Updated May 2007

Changes to this version of the protocol
This document replaces previous versions of the protocol. In brief, key changes include:

• More emphasis on rapid containment and less on rapid response (which is covered elsewhere)
• An expanded discussion of the decision-making process.
• Refinement of the containment strategy emphasizing the localized geographical approach and describing the key activities for Containment and Buffer Zones.
• A prposed approach for estimating the duration of a containment operation.
• New or updated annexes on ethical issues, non-pharmaceutical interventions, surveillance and laboratory preparedness will be added shortly.

The protocol will be updated and revised as new information becomes available and more detailed guidance and tools are developed.