; (4) act as the principal adviser to the President in a time of pandemic, biological attack, or other major health crisis; (5) to coordinate the Nation’s response to such a crisis; (6) conduct a simulation exercise at least once each year of the response to a fictional pandemic, biological attack, or other serious health crisis of high-level current and former government and nongovernmental officials in order to prepare for these potential events; (7) address the organizational structure and chain of command, both in the Federal Government and at the State level; (8) ensure adequate laboratory surveillance of viruses, including the ability to isolate and subtype viruses year-round; (9) improve vaccine research, development, and production; (10) procure adequate doses of antivirals for treatment; (11) develop systems for tracking and distributing antiviral medication and vaccines; (12) prioritize who would receive antivirals and vaccines based on limited supplies; (13) stockpile medical and safety equipment for health care workers and first responders; (14) assure surge capacity capabilities for health care providers and institutions; (15) secure a backup health care workforce in the event of a major health crisis; (16) ensure the availability of food, water, and other essential items during a major health crisis; (17) provide guidance on needed State and local authority to implement public health measures such as isolation or quarantine; (18) maintain core public functions, including public utilities, refuse disposal, mortuary services, transportation, police and firefighter services, and other critical services; (19) establish networks that provide alerts and other information for health care providers; (20) communicate with the public with respect to prevention and obtaining care during a pandemic; (21) provide security for first responders and other medical personnel and volunteers, hospitals, treatment centers, isolation and quarantine areas, and transportation and delivery of resources