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. 2006 May 1;42(9):1311–1324. doi: 10.1086/503260

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© 2006 by the Infectious Diseases Society of America

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Sample algorithm illustrating the approach to a hypothetical cluster of acute febrile respiratory illnesses with epidemiological links to severe acute respiratory syndrome (SARS) or avian influenza. BSL-3, biosafety level—3; CAP, community-acquired pneumonia; DFA, direct fluorescent antibody stain; NP, nasopharyngeal; PH, public health; SEB, staphylococcal enterotoxin B. Adapted from [16, 17].