With a 4% kill rate, SARS is a serious problem, especially due to its contagious nature. THe Spanish flue had the same level of kill rate and contagion and it killed 40 million worldwide in its 8 month streak. Sars could kill 200 million. It is an economic weapon.
What eventually makes something like this die out on it's own? It would seem it could just keep going on and on as long as it had peple to infect. Is there another factor that eventually "burns" these things out?
Nothing chimney sweeps couldn't handle...
--Boris