1. Unaids. Fact sheet—Latest global and regional statistics on the status of the AIDS epidemic. [Internet]. [cited 2018 Mar 12]. Available from: http://www.unaids.org/sites/default/files/media_asset/UNAIDS_FactSheet_en.pdf
2. UNAIDS. Nigeria | UNAIDS [Internet]. UNAIDS. 2018 [cited 2018 Mar 12]. Available from: http://www.unaids.org/en/regionscountries/countries/nigeria
3. A new human immunodeficiency virus derived from gorillas;J Plantier;Nat Med,2009
4. Increasing HIV subtype diversity and its clinical implications in a sentinel North American population;RA Siemieniuk;Can J Infect Dis Med Microbiol = J Can des Mal Infect la Microbiol medicale,2013