Nyamache, A. K.Waihenya, R .Khamadi, S. A.2012-10-262012-10-262009-10-22Retrovirology 2009, 6(Suppl 3):P371http://ir-library.ku.ac.ke/handle/123456789/5839doi:10.1186/1742-4690-6-S3-P371In sub-Saharan Africa, where the effects of human immunodeficiency virus type 1 (HIV-1) have been most devastating, there are multiple subtypes of this virus. The distribution of different subtypes within African populations is generally not linked to particular risk behaviours. Thus, Africa is an ideal setting in which to examine the diversity and mixing of viruses from different subtypes on a population basis. Objectives: To determine the subtypes of human immunodeficiency virus -1 (HIV-1) circulating in a HIV-positive drug naive populations Nairobi, Kenya.enArticle