Acceptance of intradermal inactivated influenza vaccines among hospital staff following 2 seasonal vaccination campaigns.

After a Canadian hospital's official influenza vaccination campaign concluded in the 2011-2012 and 2012-2013 influenza seasons, study nurses provided additional vaccination mobile cart hours and the added choice of an intradermal injection. An additional 2.1% of staff in the first and 1.4% in the second season were vaccinated during the study with 90-99% preferring the intradermal injection or having no preference. All 13 staff who attempted self-injection with the intradermal vaccine in 2012-2013 were successful on their first attempt. Offering alternatives to intramuscular vaccines may increase rates of vaccination.