This study will estimate influenza vaccine effectiveness by vaccine type and for different ages by combining data from medical records, vaccine registries, and results of clinician-ordered molecular tests for influenza virus infection at Kaiser Permanente Northern California.
Innovative Methods to Inform Estimates of Vaccine Effectiveness Using Information on the Epidemiology and Incidence of Influenza and Other Acute Respiratory Illnesses
Investigator: Klein, Nicola
Funder: Centers for Disease Control and Prevention