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United States Surveillance Data:
1997-1998 through 2005-2006 Seasons

The finalized data presented here may differ from the preliminary data published in the weekly reports due to the addition of late reports. If you are looking for data from a more recent season please refer to the final weekly report for that season. Once each season's data is finalized, it is added to this page.

1. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) Collaborating Laboratories

2. U.S. Influenza Sentinel Physicians Surveillance Network

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