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bone, vaccine on trial.  AIDS Virus AIDS virus See HIV.  in
Bone, Vaccine on Trial  More scientific data flowed into the
AIDS research realm this week, as scientists reported
encouraging preliminary results from the first U.S. clinical
trial of a potential AIDS vaccine AIDS vaccine A hypothetical
vaccine intended to either prevent HIV infection or ensure that
those infected will not fall victim to AIDS; the most promising
vaccine is that using a naked DNA plasmid, reported by Letwin et
al in 20/10/00 Science; as of early 2001,  and discouraging
findings indicating that the virus may infect precursors of
cells found in the bone marrow and use them as a reservoir. The
bone marrow findings provide more evidence that completely
eliminating the virus from the body may be impossible.  In the
vaccine trial, roughly one-third of the volunteers have
developed antibodies to the AIDS virus (HI