<prompt> Class A threat for bioterrorism are all EXCEPTRickettsia prowazekiEbola virusYersenia pestisClostridium botulinum  <response>: Rickettsia, prowazekii: 1769- H 18th editionKey features of Biologic agents used as Bioweapons Bioterrorism1. High morbidity rates2. Potential for person to person spread3. Low infective dose and highly infectious by aerosol4. Lack of rapid diagnostic capability5. Lack of universally available effective vaccine6. Potential to cause anxiety7. Availability of pathogen and feasibility of production8. Environmental stability9. Database of prior research and development10. Potential to be weaponizedCDC Category A, B and C AgentsCategory ACategory B Anthrax Bacillus anthrais Botulism Clostridium botulinum toxin Plaque pestis Small pox Variola major Tularemia Francisella tularensis Viral hemorrhagic feversi. Arenaviruses - Lassa, New world Machupo- Jonin, Guanarito and sabiaii. Bunyaviridae - Crimean- Congo- Rift valleyiii. Filaviridae - Ebola - Marburg Brucellosis Brucella Epsilon toxin of Clostridium perfringens Food safety threats eg salmonella spp. Escherichia, coli 0157:H7, Shigella Glanders Borkholderia mallei Meliodosis B. pseudomallei Psittacosis Chlamydophila psittace Q. fever Coxiella bumetti Ricintoxin from Ricinus commonis castor beans Staphylococcal enterotoxin- B Typhus fever Rickettsa prowazekii Viral encephalitis alpha viruses eg Venezuelan,eastern and western equinie encephalitis Water safety threats eg- vibrio choleraCryptosporidium paiwamCategory CEmerging infectious disease threats such as Nipah hantavirus, SARS coronavirus and pandemic influenza 