PORTLAND, Ore.--(BUSINESS WIRE)--AVI BioPharma, Inc. (Nasdaq:AVII), presented research results titled “Morpholino Antisense Oligomers that Target the Lentiviral Vif Gene and Tar Stem Loop are Novel Antiretroviral Drug Candidates” at the 14th Annual Conference on Retroviruses and Opportunistic Infections (CROI), held this week in Los Angeles. Richard K. Bestwick, Ph.D., director of antiretroviral research for AVI, presented the results in poster form.