Figure 1From: Screening of post-mortem tissue donors for Coxiella burnetii infection after large outbreaks of Q fever in The Netherlands Distribution of the anti-Coxiella phase 2 IgG signals observed with the two EIA kit lots used in this study. OD/CO = optical density divided by the cutoff. Samples with OD/CO ≥ 1 are considered positive. The borderline cutoff is lot-dependent and was 0.75 for lot SKA.CD and 0.72 for lot SBA.AG.Back to article page