SARS shook the world. By some standards, the first emerging and readily transmissible disease of the 21st century was not a big killer, but it caused more fear and social disruption than any other outbreak of our time.
More than 95% of cases of SARS (severe acute respiratory syndrome) took place in the Western Pacific Region. By the time transmission of the virus was declared over in July 2003, 12 countries or areas in the Region had been hit. Globally, a cumulative total of more than 8000 probable SARS cases were reported, with more than 770 deaths.