Figure 2From: Large serological survey showing cocirculation of Ebola and Marburg viruses in Gabonese bat populations, and a high seroprevalence of both viruses in Rousettus aegyptiacus Determination of ZEBOV- and MARV-specific IgG prevalence cutoffs. The cut-off values were calculated assuming a negative exponential distribution of positive optical densities (OD). With a 0.001 risk of error, the cut-off was 0.31 for both Ebola and Marburg.Back to article page