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The objective of current study was to determine the prevalence of bovine heamotropic mycoplasma in cattle using conventional polymerase chain reaction (PCR) in Nineveh province/ Iraq, to investigate some of the epidemiological risk factors associated with occurrence of the disease. From September 2017-September 2018, four hundred blood samples were obtained from cattle both sexes, different ages, origin, different management systems and from different regions in Nineveh province, ten milliliter blood were collected from the jugular vein for PCR test, whatever epidemiological data were collected through interview with the farms owners. The results of this study appear that the prevalence of bovine heamotropic mycoplasma was 75%. The risk factors associated with increased prevalence of disease include age, increased prevalence was at >3 years, females, imported animals, indoor animals which were 86.8, 80, 91.7, 77.5% respectively. The significantly increased prevalence of the disease 93.7% in the western regions of Nineveh province. In spring and summer months a significantly increased prevalence of disease which were 79.6 and 78.95 respectively. In conclusions, this study detected that bovine heamotropic mycoplasma was widely distributed in Nineveh province associated with several risk factors.

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Crimean-Congo hemorrhagic fever (CCHF) is described as a tick-borne viral zoonosis highly prevalent in Africa, Asia, Russia and the Balkans within the distribution range of ticks that belong to the genus Hyalomma. This research aimed to verify the seroprevalence of CCHF in cows employing Indirect enzyme-linked immunosorbent assay (I-ELISA) in Mosul city / Iraq, to examine some epidemiological risk factors related to the incidence of CCHF. From October 2019 -September 2020, one hundred eighty-four blood samples were taken from 3-8-year-old cattle of both sexes, from several management systems and origins, from various parts in Mosul city, 10 ml of blood was taken from the jugular vein in test tubes without anticoagulant to obtain the sera for I-ELISA test, while epidemiological data were obtained by interviewing the farm-owners. I-ELISA was applied to detect the antibodies of CCHF in the serum. The overall seroprevalence of CCHF in cows was 40/184 (21.7%). As for the risk factors associated with increased seroprevalence of the disease, an increase in seroprevalence rates was observed at ages 6, 7 and 8 years 30.5%, among females 26.3% and imported animals 27.5%. which showed that the serological prevalence in indoor feeding and outdoor feeding, was not significantly different (p<0.05). This study concluded that there is a higher seroprevalence of CCHF in Mosul city along with many risk factors related to its incidence.

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