1. Vaccine & Gene Therapy Institute, Oregon Health & Science University, Beaverton, OR 97006, USA
2. Institute of Virology, Technical University of Munich/Helmholtz Zentrum München, 81675 München, Germany
3. Division of Reproductive & Developmental, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA
4. Division of Genetics, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA
5. Department of Obstetrics & Gynecology, Oregon Health & Science University, Portland, OR 97239, USA
6. Division of Pathobiology & Immunology, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA