Acceptance and opinions of Intanza/IDflu intradermal influenza vaccine in the Czech Republic and Turkey

Abstract

Introduction: Intanza®/IDflu® (Sanofi Pasteur SA, Lyon, France), a split-virion, trivalent influenza vaccine delivered by intradermal injection with a microinjection system, became available in adults 18-59 years of age (9 μg) and ≥60 years of age (15 μg) as of the 2010/2011 northern hemisphere influenza season. Methods: This study assessed the acceptability of intradermal vaccination with Intanza/IDflu in routine clinical practice in adult vaccinees and their vaccine prescribers. Vaccine prescribers and adults who had elected to be vaccinated with Intanza/IDflu during the 2010/2011 northern hemisphere influenza season were recruited to complete surveys about their opinions of influenza vaccination and their acceptance of the intradermal vaccination. Czech subjects 18-59 years of age were vaccinated with the 9 μg formulation and those ≥60 years of age with the 15 μg formulation of Intanza/IDflu. All Turkish subjects were vaccinated with the 9 μg formulation, as Intanza/IDflu 15 μg was not available in Turkey at the time the survey was conducted. Results: One thousand and twelve vaccinees and 28 vaccine prescribers in the Czech Republic, and 249 vaccinees and 15 vaccine prescribers in Turkey completed questionnaires. Overall, 96.1% of vaccinees were satisfied or very satisfied with Intanza/IDflu. The main reason for satisfaction was that the injection was considered minimally painful. Most (93.9%) vaccinees reported that they would prefer to receive the same vaccination next year. Furthermore, 95.3% of vaccine prescribers were satisfied or very satisfied with the intradermal vaccine, and 82.6% preferred intradermal over intramuscular vaccination. Conclusions: Intradermal vaccination for seasonal influenza using Intanza/IDflu is well accepted by adult vaccinees and vaccine prescribers. By providing an additional, well-accepted method, Intanza/IDflu might help increase seasonal influenza vaccination rates in adults. © 2012 Springer Healthcare.