Figure 2. Prevalence of anti-NiV cross-neutralizing antibodies in bat sera from Cameroon.

Box-and-whisker plots showing the infection (normalized to the negative control fetal calf serum, FCS) of Vero cells by VSVpp (isogenic control, striped pattern box) and NiVpp (white box) in the presence of 100 × diluted sera from different groups: (a) FCS and (b) normal bat sera (NBS), negative control sera; (c) rabbit anti-NiV, positive control; (d) bat sera from Cameroon (n=44). Seropositive (n=21, median bar in red) and seronegative (n=23, median bar in yellow) bat sera in d were segregated based on the Dunnett’s test for significance using the FCS control group. The boxes represent the first and the third quartiles, and the solid horizontal lines within the box represent the median values. The whiskers represent the lowest and highest value. Each sample was tested in quadruplicate. The data for each serum sample are shown in Supplementary Fig. 2a.