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. 2010 Jan 15;201(2):297–301. doi: 10.1086/649587

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© 2010 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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table 2. — Demographic and Clinical Characteristics of Patients According to Etiology of Respiratory Illness Identified