So is AIDS, but that doesn't mean it is not going to wind up costing millions to control it. AIDS could have been controlled if only a quarantine was established and maintained. To allow SARS to become endemic to the population while there is still a chance to contain it would be criminal.
From the New York Times:
GUANGZHOU, China, April 27 ? The outbreak of a new respiratory disease has inflicted the greatest blow to the Chinese economy since the Tiananmen Square killings in 1989, causing a plunge in retail sales, a slump in demand for some Chinese exports and a near-collapse in domestic and foreign tourism.
J. P. Morgan Chase, which does investment banking in China, estimates that after expanding at a torrid annual rate of 9.9 percent in the first quarter, the Chinese economy is actually shrinking at an annual rate of 2 percent in the second quarter.