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healthcare-associated infections (HAI) program

Healthcare Personnel Influenza Vaccination in California Hospitals, 2016-2017

Most influenza-related illnesses and deaths occur among vulnerable members of the population, such as patients in hospitals.  Health care personnel (HCP) can transmit influenza to patients and coworkers.  Annual influenza vaccination is a simple, safe, and cost effective way to prevent influenza. 

California acute care hospitals are required to offer free influenza vaccine to HCP.  Hospital HCP must receive an annual vaccine or sign a declination form. Hospitals collect vaccination data for all HCP physically working in the hospital for at least one day during influenza season, regardless of clinical responsibility or patient contact.  Hospitals report HCP vaccination rates to the California Department of Public Health (CDPH) and CDPH publishes the hospital results annually. CDPH reports data separately for hospital employees, licensed independent practitioners such as physicians, other contract staff, and trainees and volunteers (Health and Safety Code section 1288.7-1288.8).

This report presents hospital HCP vaccination rates for the 2016-2017 influenza season, October 1, 2016, through March 31, 2017. Overall, California hospitals reached 83% influenza vaccination among HCP, showing a steady increase since the 2010-2011 influenza season when overall vaccination was 63%. 

Influenza Vaccination Among Healthcare Personnel in California Hospitals, 2016-2017  (PDF)

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