THE BIGGEST NON-HUMAN casualty of severe acute respiratory syndrome's spread this spring was the American Association for Cancer Research annual meeting, which was scheduled for April 5 to 9 in Toronto. As many as 16,000 attendees were expected.
AACR made the announcement just two days before the conference was to start, calling the decision difficult but necessary. Many of the attendees were backing out of the event for fear that they would infect their own patients. Within tw