Figure 1From: Investigation of Chlamydophila spp. in dairy cows with reproductive disordersResults of Pourquier® Cp. abortus ELISA serology in 525 Swedish dairy cows from 70 herds with reproductive disorders, sampled during January 2000 to December 2005. The dotted line shows the cut-off value. The seroprevalence among cases was 0.4% (2/286) and among controls 0%.Back to article page