Figure 1. Six countries studied for hepatitis E virus (HEV) infection in dromedary camels, 1983–2015. Number of tested and number of HEV-7 RNA-positive samples or Ab-positive samples are given next to the study sites: Egypt, Sudan (today separated into Sudan and South Sudan), Kenya, Somalia, UAE, and Pakistan. Countries with both HEV-7 RNA and Ab detection are in yellow; countries with only Ab detection are in orange. Ab, antibody; UAE, United Arab Emirates; Map was created by using Quantum GIS (http://qgis.osgeo.org) and data from http://www.naturalearthdata.com.