If SARS is indeed a bioweapon and I believe it is then.
A: There already exists a cure. It will most likely be in the form of a preventative vaccine.
B: The country that manufactured it and possibly it's allies possess the vaccine.
C: If it was released on purpose then most likely the population of the country who released it will already have been innoculated. Probably via covert arial spraying. Look for chemtrails.
D: SARS will only mildly affect those who have been covertly vaccinated.
E. The pattern of no deaths should reveal the origin.