Salmonella Dublin associated with abortion in dairy cattle in Algiers and comparison of different diagnostic methods

Background: In cattle, many serotypes of Salmonella enterica are responsible for a wide variety clinical manifestations, which can cause considerable economic loss. Some cows to abort sporadically, such as the Dublin serotype. This study was carried out on different cattle farms in Algiers region determine prevalence using bacteriological and immunological methods.Methodology: The determined by analysis accordance with reference method AFNOR NF U 47-100 faecal samples collected from 184 belonging 19 farms, serotyping S. Dublin. Immunological enzyme-linked immunosorbent assay (ELISA) milk 91 cattle. A survey case (n=5) control (n=14) comparative performed demonstrate link between abortion both methods. Sensitivity, specificity, Cohen Kappa coefficient, McNemar test odds ratios, confidence intervals were calculated Winepiscope 2.0 StatA 9.1 software,and p<0.05 considered statistically significant.Results: results showed 7.6% (95%CI: 3-10), revealed 2.7%. ELISA technique 13.2% 5-20) faeces detecting poor agreement two tests (k=0.25), enzyme immunoassay being significantly more sensitive than (p<0.05). did not clear association detection (OR=8.66, 95%CI: 0.58-130.12). However, Dublin, there significant positive (OR=62.33, 2.13-18.22) antibody response presence abortions farm.Conclusion: view these results, we conclude that infections should systematically feature differential diagnosis dairy Algeria.
 Keywords: faeces, milk, abortion, immunology, bacteriology,