A Geographical Distribution Survey on CCHF Positive Antibody ‎Ovine's of Isfahan Province in 1383-1384‎

Introduction. Crimean-Congo hemorrhagic fever is a viral zoonotic infection which several ‎cases of that have been reported in Iran. Regarding the recent breakouts in many countries ‎including Eastern bordering countries of Iran and high mortality rate,this study was performed to ‎determine geographical distribution of ovines – with positive IgG antibody against Crimean – ‎Congo hemorrgagic fever in Isfahan province of Iran in 1383-1384.‎ Material and Methods. This cross sectional study is a collaborative work with Arbovirus and ‎hemorrhagic fever laboratory of Iran Pasteur Institute.107 ovines were selected randomly from ‎Isfahan grassland and then were checked for Crimean – Congo antibody by Elisa method.‎ Results. out of 107 ovines,58(54.2%) had positive serology,47(43.9%) had negative serology ‎and 2(1.9%) had borderline result.Regarding Geographical distribution, the most infected ‎Grassland was Natanz(71.4%) and after that Isfahan,Borkhar,Falavarjan and Freydan. ‎considering age distribution the most infection was reported between the ages 4 to 5(62.5%).‎ Discussion. The results of this study revealed the endemic spreading of CCHF in the ovines of ‎Isfahan province.Although, the incidence rate is increased in comparison to the past decades,the ‎same has not been observed in the recent years which is inline with the similar studies. therefore, ‎improvement the health care and conducting serial seroepidemiologic studies to assess the effect ‎of such measures seems necessary.‎