Nationwide , severe acute respiratory syndrome has infected more than 5,300 people , about two-thirds of world 's total , and killed 343 of them .
Nationwide , severe acute respiratory syndrome has infected more than 5,300 people , about two-thirds of world 's total , and killed 343 of them .
Severe acute respiratory syndrome has infected more than 8,300 worldwide and killed at least 790 , most of them in Asia .