Probably extinct: There haven't been any cases in nearly eight years, so it has likely vanished as a pathogen.
Answered 9/22/2012
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9.6%: 2003 outbreak of SARS (coronavirus respiratory illness) had 8096 patient sick with 774 deaths - 9.6 % mortality rate. This percentage was much higher in older patients with mortality rate as high as 43% in patients above age 60.
Answered 3/21/2020
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