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California Department of Public Health (CDPH) Influenza Surveillance Program 

Historic Influenza and Other Respiratory Disease Surveillance Reports

The California Department of Public Health (CDPH) Influenza Surveillance Program (CISP) is a collaborative effort between CDPH, the Centers for Disease Control and Prevention (CDC), Kaiser Permanente, California local health jurisdictions and the participating California sentinel providers and sentinel laboratories. Influenza surveillance in California is particularly important due to its coastal location with several ports of entry for flights and shipping from Asia. Annual influenza epidemics follow a winter seasonal pattern in the United States with typical activity peaking during late December to early February. CDPH obtains and analyzes clinical, and laboratory data year-round in an effort to determine the timing and impact of influenza activity and to determine how well circulating strains of the virus match those used in the current influenza vaccines.

Influenza and Other Respiratory Disease Surveillance Reports archived by week ending date.
 
 (All links are PDF files)

Annual Reports

2015-2016  |  2014-2015  |  2013-2014  |  2012-2013  

2011-2012  |  2010-2011 2007-2008  |  2006-2007  

2005-2006  |  2004-2005  |  2003-2004  |  2002-2003 

2001-2002  |  2000-2001  |  1999-2000

 2017-2018 Season
 2015-2016 Season
 2016-2017 Season
 2014-2015
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