Adverse Events of Trivalent Influenza Vaccine among Health Care Workers in Iran

To assess the frequency and type of adverse events after influenza vaccination in iranian adults.methods: health care workers in 7 medical centers received the influenza vaccine from october 2006 to february 2007 andfollowed by phone regarding symptoms experienced after vaccination.results: of 897 adults who participated in the study, local and systemic reactions were reported by 187 (20.8%) and 198(22.1%) persons, respectively. the most common local reaction was pain (20.2%), while myalgia (15.8%) was the mostcommon systemic reaction. one case of guillain-barre syndrome was reported.conclusion: inactivated influenza vaccine administration did not result in potential adverse events in healthy adults.