Impact of SARS

What are the lessons that we can learn from the SARS Cris and how can we apply to ensure the same mistake are not commited again when dealing with the Asian Flu?
If time were to turn back, what could and would we have done differently to minimise the impact?
How do we calculate quivalent economic losses due to the disruption of normal life and can the loss of a life be measured in economic term?
How can we work together to prevent such a cris from happening again in this world?