Background: Owing to the absence of a vaccination registry in Ontario, administrative data
are currently the best available source to determine population-based individual-level …

The objective of this study was to validate physician billing claims against self-reported
influenza vaccination to assess individual-level vaccination status. We compared responses …

Introduction Influenza vaccination is the best prevention strategy to protect against influenza
infection. Determining accurate influenza vaccination coverage is critical. This study …

Background: Little is known about those vaccinated against influenza after pharmacists were
added to the Ontario Universal Influenza Immunization Program, in 2012. Our aim was to …

Background Lack of health insurance may limit access to influenza vaccination, resulting in
higher risk of infection. Methods The Brazos County Health Department obtained medical …

Background Although self-reported influenza vaccination status is routinely used in
surveillance to estimate influenza vaccine coverage, Medicare data are becoming a …

Background Documentation of influenza vaccination, including the specific product received,
is critical to estimate annual vaccine effectiveness (VE). Methods We assessed performance …

Annual influenza vaccination campaigns emphasize the importance of getting vaccinated
against influenza. These campaigns offer potential opportunities to raise awareness of all …

Background Annual immunization is the most effective way to prevent influenza and its
associated complications. However, optimal immunization rates are not being met in Nova …

Abstract Background According to the Centers for Disease Control and Prevention,
approximately 5-20% of people are affected by influenza annually, and influenza causes …