CercopithecusCercopithecus aethiopsErythrocebus patasMonkey DiseasesHaplorhiniCercopithecinaeGenes, vpuAfricaSouth AfricaCameroonPhylogenySimian immunodeficiency virusSpecies SpecificityAfrica South of the SaharaCercocebusSimian T-lymphotropic virus 3Yaba monkey tumor virusDeltaretrovirus InfectionsSimian T-lymphotropic virus 1PrimatesAfrica, WesternSimian Acquired Immunodeficiency SyndromeAfrica, SouthernAnimals, Wild