A Geographical Distribution Survey on CCHF Positive Antibody Ovine's of Isfahan Province in 1383-1384
2007
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.
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