Anticipating the worst is a good thing.
D023482:Bioterrorism / Q000517:prevention & control; D004189:Disaster Planning / Q000458:organization & administration*; D006801:Humans; D024802:Nurse's Role; D009740:Nursing Staff / Q000193:education / Q000523:psychology; D045169:Severe Acute Respiratory Syndrome / Q000517:prevention & control; D012899:Smallpox / Q000517:prevention & control