List some of the major public health threats that have recently emerged in the twenty-first century.

What will be an ideal response?

• Terror: Active attacks, commerce, economic attacks, interference with food, water, utility supplies, Internet.
• Natural disasters: Earthquakes, extreme heat, floods, hurricanes, landslides, mudslides, power outages, tornadoes, tsunamis, volcanoes, wildfires, winter weather.
• Disease: Anthrax, avian influenza, botulism, Ebola hemorrhagic fever, hantavirus, Lassa fever, plague, ricin toxin, viral-encephalitis.