<prompt> Category A bioterrorism agents areEbolaYersiniaClostridium botulinumRickettsia  <response>: Category A bioterrorism agents include - 1. Smallpox- various virus 2. Tularemia- Francisella tularensis 3. Anthrax- bacillus anthracis 4. Botulinum toxin- Clostridium botulinum 5. Bubonic plague- yersinia pedis 6. Viral haemorrhage fever- filoviridae Marburg virus and Ebola virus Ref: Baveja textbook of microbiology; 4th edition 