1. Laboratory of Experimental Virology, Department of Medical Microbiology, Center for Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
2. Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
3. Division of Infectious Diseases, Department of Internal Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
4. Department of Microbiology and Immunology, Weill Medical College, Cornell University, New York, New York.