New data on clinical features, incubation period, and case fatality rate of SARS in Hong Kong and Canada

New findings arising from the outbreaks of severe acute respiratory syndrome (SARS) in Hong Kong and Canada have been reported in two early online publications (1, 2). The authors of the Hong Kong paper used demographic, epidemiological, and clinical data from 1425 SARS cases reported up to 28 April to describe the epidemic in Hong Kong and to estimate key epidemiological parameters. The paper from Canada reviews the clinical features and outcomes of 144 SARS patients admitted to hospital between 7 March and 10 April in Toronto.