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Emergencies happen, often with little or no notice. By taking action beforehand you can be prepared for any emergency.

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Biological Terrorism

PACIFIC OCEAN (July 29, 2013) Sailors simulate a test for radiological and biological hazards aboard the amphibious assault ship USS Boxer (LHD 4). (U.S. Navy photo by Mass Communication Specialist Seaman Conor Minto/Released) 130729-N-VO234-211

Terrorists could deliberately release biological substances that harm or kill people, animals, and plants. Bacteria, viruses, and toxins—the main types of potential biological “agents”— occur in nature but can be altered to increase their ease of dispersion, potency, or resistance to medicines.

Most biological agents are hard to grow and sustain. Many die when exposed to the environment, but others, like anthrax spores, are hardy.

They can be spread by spraying them into the air, contaminating food and water, or infecting animals that carry disease to humans. Many must be inhaled, eaten, or absorbed through a skin cut to make you sick; some cause contagious diseases.

Biological agents can be hard to detect, and their effects may be delayed. A biological attack could come without warning, and the danger may not be immediately recognized. The first alert may be from health care workers noting an unusual pattern of illness. Your first warning would likely be an emergency broadcast, or some other signal used in your community.

How to Prepare

  • Advance precautions for bioterrorism are limited:
    • Be and stay informed.
    • Make a written family emergency plan.
    • Make a written emergency communication plan in case family members are separated.
    • Build an emergency kit, and be sure to include breathing filters.
    • Stay healthy—Eat sensibly, get enough rest, and practice good hygiene.
    • Ensure that all required and recommended immunizations are up to date. Children and the elderly are especially vulnerable to biological agents.
    • Consider installing a high-efficiency particulate air (HEPA) filter in your furnace return duct or using a standalone portable HEPA filter. These can filter out most biological agents that may enter your house.

What to Do

  • In the event of a biological attack, it may take a while to determine the nature of the threat, who is at risk, and the best steps to take. Watch television, listen to radio, or check the Internet for reliable information about areas in danger, signs and symptoms, and the nature and location of available assistance.
  • Try to stay in an indoor location where the air is filtered.
  • If you notice a suspicious substance, move away, wear a breathing filter, wash with soap, and contact authorities.
  • If you are exposed to a biological agent:
    • Wear a breathing filter. If you do not have a mask, layers of fabric (t-shirt, handkerchief, or towel) or several layers of tissue or paper towels may help.
    • Remove clothes and personal items, bag them, and follow official instructions for disposal.
    • Wash with soap and put on clean clothes.
    • Practice good hygiene.
    • Use common sense. Be alert for symptoms, but don’t panic.
    • Seek medical attention. Medical treatments are available for some biological threats. You may be advised to stay away from others.
  • In most biological emergencies or epidemics, it is best to stay away from crowds where others may be infected.
  • If someone is sick, practice good hygiene:
    • Wash hands with soap frequently.
    • Don’t share food or utensils.
    • Cover the mouth and nose with crook of your arm when coughing or sneezing.
    • Consider breathing filters for patients, caregivers, and others.

Where to Find Additional Information

  • Live radio and television broadcasts will have the most current information on bioterrorism events and the appropriate actions to take.
  • The following agencies offer more detailed and updated information about biological threats:


Be Ready Navy—Be informed before, during, and after an incident; make a written family emergency plan; and build an emergency supply kit good for at least three days.

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