School of Medicine, University of California Davis 1 article published in JoVE Immunology and Infection Rapid, Seamless Generation of Recombinant Poxviruses using Host Range and Visual Selection Sameera Vipat*1, Greg Brennan*1, Chorong Park1, Sherry L. Haller2, Stefan Rothenburg1 1Department of Medial Microbiology and Immunology, School of Medicine, University of California Davis, 2Department of Microbiology and Immunology, University of Texas Medical Branch at Galveston This is a method to generate “scarless” recombinant vaccinia viruses using host-range selection and visual identification of recombinant viruses.