http://www4.od.nih.gov/oba/rac/guidelines_02/APPENDIX_B.htm

Appendix B-IV.   Risk Group 4 (RG4) Agents


RG4 agents are likely to cause serious or lethal human disease for which preventive or therapeutic interventions are
not usually available.



Appendix B-IV-A.   Risk Group 4 (RG4) - Bacterial Agents


None



Appendix B-IV-B.   Risk Group 4 (RG4) - Fungal Agents


None



Appendix B-IV-C.   Risk Group 4 (RG4) - Parasitic Agents


None



Appendix B-IV-D.   Risk Group 4 (RG4) - Viral Agents


Arenaviruses

--Guanarito virus

--Lassa virus



--Junin virus

--Machupo virus

--Sabia



Bunyaviruses (Nairovirus)

--Crimean-Congo hemorrhagic fever virus



Filoviruses

--Ebola virus

--Marburg virus



Flaviruses (Togaviruses) - Group B Arboviruses

--Tick-borne encephalitis virus complex including Absetterov, Central European encephalitis, Hanzalova, Hypr,
Kumlinge, Kyasanur Forest disease, Omsk hemorrhagic fever, and Russian spring-summer encephalitis viruses



Herpesviruses (alpha)

--Herpesvirus simiae (Herpes B or Monkey B virus)



Paramyxoviruses

--Equine morbillivirus



Hemorrhagic fever agents and viruses as yet undefined