This document sets out revised guidelines for the global surveillance and reporting of SARS as an ongoing strategy for rapidly detecting cases and preventing further national or international spread. Addressed to national health authorities, the guidelines respond to the need for a sustainable long-term approach to SARS surveillance that maintains an adequate level of sensitivity yet does not overburden health system capacity. With this objective in mind, the document adopts a phased approach to surveillance and preparedness, with different levels of activity recommended for each of four phases. These phases move from the absence of evidence that the SARS coronavirus (SARS-CoV) is circulating in human populations, to the detection of human chains of transmission, to evidence of international spread, to the post-epidemic period. Full paper in PDF format (439kb); Number of pages: 40p
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