Seroprevalence of anti- antibodies in cows of North-Eastern Algeria.

Aim: The present cross-sectional study aimed at assessing the seroprevalence of infection both at herd and within herd and at determining risk factors that are associated with its seropositivity.

Materials And Methods: A total of 90 cows distributed over seven herds located in two North-Eastern Algerian provinces were blood sampled in order to be tested for the presence of antibodies against using a commercially available enzyme-linked immunosorbent assay kit.

Results: The individual seroprevalence of was found to be 12.22%, and six of the seven herds tested had at least one seropositive cow. The logistic regression model revealed that abortion (odds ratio [OR]=29.15) and parity (OR=7.38) were positively associated with the seropositivity of animals on an individual basis.

Conclusion: The study confirms the existence of infection in cattle in North-Eastern Algeria. However, a widespread infection rate of 85.71% and its significant statistical association with previous abortion (OR=29.15) need further investigations.