Böni, Jürg*; Pyra, Halina*; Gebhardt, Martin†; Perrin, Luc‡; Bürgisser, Philippe§; Matter, Lukas∥; Fierz, Walter¶; Erb, Peter#; Piffaretti, Jean-Claude**; Minder, Elisabeth††; Grob, Peter‡‡; Burckhardt, Johann J.§§; Zwahlen, Marcel†; Schüpbach, Jörg*
*Swiss National Center for Retroviruses, University of Zurich, Zurich; †Swiss Federal Office of Public Health, Berne; ‡Central Virology Laboratory, Geneva University Hospital, Geneva; §Division of Immunology and Allergology, University Hospital Center, Lausanne; ∥Institute for Medical Microbiology, University of Berne, Berne; ¶Institute for Clinical Microbiology and Immunology, Kantonsspital, St. Gallen; #Institute for Medical Microbiology, University of Basel, Basel; **Istituto Cantonale Batteriosierologico, Lugano; ††Triemli City Hospital, Zurich; ‡‡Division of Clinical Immunology, Department of Medicine, Zurich University Hospital, Zurich; and §§Central Laboratory of the Swiss Red Cross, Berne, Switzerland
Address correspondence and reprint requests to Jörg Schüpbach, Swiss National Center for Retroviruses, University of Zurich, Gloriastrasse 30, CH-8028 Zurich, Switzerland; email: [email protected]
Manuscript received March 29, 1999; accepted July 13, 1999.