"The HHS PHEMCE Implementation Plan for CBRN Threats addresses twelve biological threat agents, a class of chemical threats (volatile nerve agents) and radiological and nuclear threats.... The HHS PHEMCE Implementation Plan for CBRN Threats excludes pandemic influenza, which is addressed in the HHS Pandemic Influenza Plan...". (HHS, PHEMC Implementation Plan for CBRN Threats, April 2007, p. 2)