Appendix – HIV Group O countries of risk - Africa This list is subject to change due to updates by the Food and Drug Administration. It is possible that FDA has issued a more current list of countries. Users are responsible for maintaining a current list of the countries. HIV Group O Countries: Benin Cameroon Central African Republic Chad Congo Equatorial Guinea Gabon Kenya Niger Nigeria Senegal Togo Zambia From the U.S. Department of Health and Human Services, Food and Drug Administration, Guidance for Industry: Recommendations for Management of Donors at Increased Risk for Human Immunodeficiency Virus Type 1 (HIV-1) Group O Infection, dated August 2009 http://www.fda.gov/BiologicsBloodVaccines/GuidanceComplianceRegulatoryInformatio n/Guidances/Blood/ucm180817.htm HPC DHQ-HPC, Apheresis and HPC, Marrow UserInstApp_HIV v1.5 eff. March 2016