1. •There are three categories of biological
agents potential enough to cause mass
casualties (Center for Disease Control &
Prevention).
•Category A, B & C
•Those in category A have the greatest
potential for fear and disruption and most
significant public health impacts.

3. •Moderately easy to disseminate
•Moderate morbidity and low mortality
•Require improved diagnostic capacity & enhanced
surveillance
•Viruses: Alphaviruses
•Bacteria: Coxiella burnetii (Q fever), Brucella spp.
(brucellosis), Burkholderia mallei (glanders)
•Toxins: Rinus communis (caster beans) ricin toxin,
Clostridium perfringens episolon toxin, Staphylococcus
enterotoxin B

4. •Viruses: Nipah, hantaviruses, tick borne
hemorrhagic fever viruses, tick borne
encephalitis viruses, yellow fever
•Bacteria: Multi-drug resistant
Mycobacterium tuberculosis