[1] Oregon Hlth & Sci Univ, Vaccine & Gene Therapy Inst, Beaverton, OR 97006 USA
[2] Oregon Hlth & Sci Univ, Oregon Natl Primate Res Ctr, Beaverton, OR 97006 USA
[3] Univ Wisconsin, Wisconsin Natl Primate Res Ctr, Madison, WI 53706 USA
[4] Univ Wisconsin, Dept Pathol & Lab Med, Madison, WI 53706 USA