The World Health Organization (WHO) has established six pandemic phases and related threat levels. (See Figure C-1.) This threat phase approach is similar to the Department of Home-land Security’s five terrorist threat levels.
Planning assumptions that are reasonable to use when developing plans to address a possible pandemic should include the following:
Remedies will not necessarily be readily available and may be in very limited supply; those in professions deemed critical, such as first responders and healthcare workers, will have first priority.
It is not unreasonable to expect a 30 percent to 40 percent, ...