1. From the Ghost Lab
2. Laboratoire d'Immunologie and U520 Institut National de la Santé et de la Recherche Médicale, Institute Curie, Paris, France; and
3. Laboratory of Cellular and Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD;
4. Departments of Medical Microbiology & Immunology and
5. Surgery, University of Alberta, Edmonton, AB, Canada