Fig. 2.

Host and geographic origin of screened samples (2 columns). Map showing the geographic and host origins of the samples and RNA sequencing libraries screened for the presence of DWV-D. Major host groups (Apis, Bombus, Varroa) and whether or not the samples come from areas free of varroa are represented by different colors. The number of unique SRAs of each type in each location is indicated by the size of the marker. The MENA samples screened by Sanger sequencing ([27]; Additional file 1: Fig. S2) are bounded by a red circle