SEROPREVALENCE RATE OF COXIELLA BURNETII IN COWS’ SERUM IN ASSIUT GOVERNORATE, EGYPT

Document Type : Research article

Authors

1 Department of Zoonoses, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.

2 Department of Zoonoses, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt

3 Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt.

Abstract

This study was conducted to determine the seroprevalence of Coxiella burnetii in cows from Assiut Governorate, Egypt. A total of 268 blood samples were collected from cows (176 females and 92 males). The age of these animals ranged between 2 months to more than 3 years. Screened for C. burnetii using indirect enzyme-linked immunosorbent assay. A total of 15.67% (42/268) was serologically positive.The seropositivity was high in females(19.56%) than males (13.63%).The native breed was more infected ( 17.44%) than Fresian (13.33%) and mixed ones (11.76%). In cows, the higher seroprevalence was observed in the age group more than 1 to2 Years (22.38%). Dairut city recorded the highest seroprevalence rate (40.74%) of C.burnetii. C.burnetii seroprevalence was higher in hot season (20.10%) than cold season (5.95%). Cows free from ticks recorded higher seroprevalence (22.58%) than those infested with ticks (12%). Cows with fever and pneumonia recorded higher seroprevalence (14.29%) compared to animals with other signs. In conclusion, findings of this study revealed that the wide spread of C. burnetii infection among cows at Assiut Governorate, Egypt.

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