Serological study of Neospora caninum infection in dogs and cattle from west of Iran

The aim of this study was to determine the seroprevalence of Neospora caninum infection in dogs and cattle from Hamedan province (West of Iran). Blood samples were collected from 1,046 cattle and 270 dogs in this area. Cattle and dog samples were tested and analyzed using ELISA and IFAT, respectively. IgG-antibodies to N. caninum were found in 27 and 17.4 % of dogs and cattle samples, respectively. In cattle study, The association between infection and type of cattle was statistically significant (P?=?0.004). Also, significant statistical differences were observed regarding to stray canids presence in farm (P?P?P?=?0.195) and breed (P?=?0.077). In dog study, there was statistical differences among age groups (P?P?P?=?0.112). This study is the first report of N. caninum infection in dogs and cattle from west of Iran. There is both horizontal and vertical transmission of N. caninum in this area, and the presence of stray dogs may be a risk factor for N. caninum infection in cattle. N. caninum is an important factor in the economic losses of the cattle breeding in Hamedan province. Therefore, further investigations and designing control strategies for improving management in cattle farms is highly recommended.