CercopithecusPrimatesCercopithecus aethiopsGenes, vpuMonkey DiseasesErythrocebus patasCameroonHaplorhiniSimian immunodeficiency virusCercopithecinaeCercocebusSimian T-lymphotropic virus 3Yaba monkey tumor virusDeltaretrovirus InfectionsSimian T-lymphotropic virus 1PhylogenySimian Acquired Immunodeficiency SyndromePan troglodytesAnimals, WildSpecies SpecificityGenes, envMolecular Sequence DataPrimate Diseases