1. Center for Vaccines and Immunology, University of Georgia, Athens, GA, USA
2. Cellular Technology Ltd., Shaker Heights, OH, USA
3. Microbiology and Virology Unit, “Vita-Salute San Raffaele” University, Milan, Italy
4. Pomona Ricerca S.r.l., Turin, Italy
5. Vector Development and Production Laboratory, St. Jude Children’s Research Hospital, Memphis, TN, USA