بررسی تأثیر واکسن آنفلوانزا بر روی سندرم حاد تنفسی حجاج شهرستان ابهر در سال 1381

Background & Objectives: There are near two million people from around the world have planning to journey for Hadje ceremony. Old age, Crowding dormitory, close contact, poor sanitation, poor health services, different community pattern, high temperature and other factors cause the infectious diseases particularly respiratory infection more than ever Influenza occur more common and cause more discomfort during this ceremony. This study in 1381 Clear the effect of influenza vaccine compare with placebo in this group of population Pilgrimage group. Methods: This study had interventional randomize clinical design on 156 pilgrims in Abhar City. The pattern of the cases selection for reducing of bias effect was every other pilgrim for vaccine injection. All of the cases before, during and three week after return back from this ceremony had close health services. All the pilgrims had private document for recording the events. Results: About 147 of pilgrims experienced had pulmonary infection (93% in case and 96% in control). There was no difference in either cases or control groups Conclusions: There is no benefit for using influenza vaccine other than its indications in the patients but it needs additional studies.