title: New HIV strains?
authors.forename: Allison
authors.initials: A
authors.lastname: Lang
mesh_terms: D000818:Animals; D005075:Biological Evolution; D006678:HIV / Q000145:classification; D006801:Humans; D016097:Simian Acquired Immunodeficiency Syndrome / Q000635:transmission / Q000821:virology*; D015302:Simian Immunodeficiency Virus